Question

What number must be added to the expression below to complete the

square?
x²-x
O A. -1/1
4
O B. /
O C. - 12/2
O D.
-12

Answer 1

1/4

Explanation:

Completing the square

x^2 -x

Take the coefficient of the x term

-1

Divide by 2

-1/2

Square it

(-1/2) ^2 = 1/4

Add this to each side