Question

Complete the square to transform the expression x2 + 4x + 2 into the form a(x − h)2 + k.

(x + 2)2 − 2
(x + 2)2 + 2
(x + 4)2 − 2
(x + 4)2 + 2

Answer 1

98-v

Explanation:

Answer 2

(x + 2)² - 2

Explanation:

given

x² + 4x + 2

to complete the square

add/subtract (half the coefficient of the x- term )² to x² + 4x

= x² + 2(2)x + 4 - 4 + 2

= (x + 2)² - 4 + 2

= (x + 2)² - 2