Question

What number would you add to both sides of x2 + 7x = 4 to complete the square?
o 22

Answer 1

49/4

Explanation:

x^2 + 7x = 4

Take the coefficient of x

7

Divide by 2

7/2

Square it

(7/2) ^2 = 49/4

Add this to each side

x^2 + 7x +49/4= 4+49/4