Solve by completing the square.v2+8v=29Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.v= _____ or v= _____
Q. Solve by completing the square.v2+8v=29Write your answers as integers, proper or improper fractions in simplest form, or decimals rounded to the nearest hundredth.v= _____ or v= _____
Write equation in form: Write the equation in the form of v2+bv=c. The given equation is already in this form: v2+8v=29.
Add to complete square: Add the square of half the coefficient of v to both sides to complete the square.The coefficient of v is 8, so half of it is 4, and the square of 4 is 16.Add 16 to both sides of the equation:v2+8v+16=29+16v2+8v+16=45
Factor left side: Factor the left side of the equation.The left side is a perfect square trinomial:(v+4)2=45
Take square root: Take the square root of both sides of the equation.(v+4)2=±45v+4=±45
Solve for v: Solve for v by isolating the variable.Subtract 4 from both sides of the equation:v+4−4=±45−4v=−4±45
Simplify square root: Simplify the square root and round to the nearest hundredth if necessary.45 is approximately 6.71 when rounded to the nearest hundredth.v=−4±6.71
Find two values: Find the two values of v.v=−4+6.71≈2.71v=−4−6.71≈−10.71
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