Question

F(x) = x^2 + 2x - 39

Rewrite the function by completing the square

(Answer by filling in these blanks):

f(x) = (x + ___)^2 + ___

Answer 1

i believe the answer is (x+1)^2 - 40

hope this helps !

Answer 2

(x + 1)² - 40

Explanation:

Given

x² + 2x - 39

To complete the square

add/subtract ( half the coefficient of the x- term )² to x² + 2x

= x² + 2(1)x + 1 - 1 - 39

= (x + 1)² - 40