Q. Miku solves the equation below by first squaring both sides of the equation.z2+2z−3=z−3What extraneous solution does Miku obtain?z=
Rephrasing the Problem: First, let's rephrase the "What extraneous solution does Miku obtain when solving the equation z2+2z−3=z−3 by first squaring both sides?"
Squaring Both Sides: Miku starts by squaring both sides of the equation to eliminate the square root. The equation becomes (z2+2z−3)2=(z−3)2.
Expanding the Equation: After squaring both sides, the equation simplifies to z2+2z−3=(z−3)2. We need to expand the right side of the equation.
Solving for z: Expanding the right side, we get z2+2z−3=z2−6z+9.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9. Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9. Combining like terms, we get 8z−3=9. Adding 3 to both sides gives us 8z=12. Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90. Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation. However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95. Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95.Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97.Calculating the inside of the square root, we have 2z−3=−6z+98.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95.Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97.Calculating the inside of the square root, we have 2z−3=−6z+98.Simplifying the terms inside the square root, we get 2z−3=−6z+99.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9. Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9. Combining like terms, we get 8z−3=9. Adding 3 to both sides gives us 8z=12. Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90. Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation. However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95. Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97. Calculating the inside of the square root, we have 2z−3=−6z+98. Simplifying the terms inside the square root, we get 2z−3=−6z+99. Taking the square root of 6z0, we get 6z1.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95.Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97.Calculating the inside of the square root, we have 2z−3=−6z+98.Simplifying the terms inside the square root, we get 2z−3=−6z+99.Taking the square root of 6z0, we get 6z1.Now we substitute 2z−3=−6z+92 into the right side of the original equation, which is 6z3.
Checking for Extraneous Solution: Next, we subtract z2 from both sides to simplify the equation, which gives us 2z−3=−6z+9.Now, we add 6z to both sides to isolate the z terms on one side, resulting in 2z+6z−3=9.Combining like terms, we get 8z−3=9.Adding 3 to both sides gives us 8z=12.Finally, we divide both sides by 8 to solve for z, which gives us 2z−3=−6z+90.Simplifying the fraction 2z−3=−6z+91, we get 2z−3=−6z+92 or 2z−3=−6z+93. This is the solution we obtain after squaring both sides of the equation.However, we must check this solution in the original equation to ensure it is not extraneous. We substitute 2z−3=−6z+92 into the original equation 2z−3=−6z+95.Substituting 2z−3=−6z+92 into the left side of the original equation, we get 2z−3=−6z+97.Calculating the inside of the square root, we have 2z−3=−6z+98.Simplifying the terms inside the square root, we get 2z−3=−6z+99.Taking the square root of 6z0, we get 6z1.Now we substitute 2z−3=−6z+92 into the right side of the original equation, which is 6z3.Calculating the right side, we get 6z4.
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