Solve by completing the square.y2−26y=49Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.y=_____ or y=_____
Q. Solve by completing the square.y2−26y=49Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.y=_____ or y=_____
Move Constant Term: Rewrite the equation in the form of y2+by=c. We have the equation y2−26y=49. To complete the square, we need to move the constant term to the other side of the equation. y2−26y+___=49+___
Find Completing Number: Find the number to complete the square.To complete the square, we need to add (−226)2 to both sides of the equation. This is because the term we add to both sides must turn the left side into a perfect square trinomial.(−226)2=(−13)2=169So, we add 169 to both sides.y2−26y+169=49+169
Rewrite as Binomial: Rewrite the equation as a squared binomial.Now that we have added 169 to both sides, the left side of the equation is a perfect square trinomial.y2−26y+169=218This can be factored into (y−13)2 because (y−13)(y−13)=y2−26y+169.(y−13)2=218
Take Square Root: Take the square root of both sides.To solve for y, we take the square root of both sides of the equation. Remember to consider both the positive and negative square roots.(y−13)2=±218y−13=±218
Solve for y: Solve for y.Now we isolate y by adding 13 to both sides of the equation.y=13±218Since 218 is not a perfect square, we can approximate it to the nearest hundredth.218≈14.76y≈13±14.76
Find Values of y: Find the two values of y.We have two possible solutions for y, one using the positive square root and one using the negative square root.y≈13+14.76 implies y≈27.76.y≈13−14.76 implies y≈−1.76.Values of y: 27.76, −1.76
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