How would you complete the square on the left side of this equation? x^2-6x=15 A. Add 6 to both sides of the equation. B. Subtra

Question

3 years ago

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How would you complete the square on the left side of this equation? x^2-6x=15 A. Add 6 to both sides of the equation. B. Subtra

ct 6 from both sides of the equation. C. Add 9 to both sides of the equation. D. Subtract 9 from both sides of the equation. Please select the best answer from the choices provided A B C D

Mathematics

1 answer:

Illusion [34] · Answer 1 · 2022-11-18T08:14:44+03:00

Answer:

C. Add 9 to both sides of the equation.

Step-by-step explanation:

Given

$x^2 - 6x = 15$

Required

Complete the squares

We have:

$x^2 - 6x = 15$

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Take the coefficient of -6 i.e. -3

Square it (-3)^2 = 9

Add 9 to both sides

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<em>Hence, C is correct</em>