Question

Find the value of c that completes the square for the function f(x)= x2 + 4x + C.

Your answer:
- 4
4
16
81/
4

Answer 1

`= - 4 * 2 + 4 * ( - 4) + c \\ = - 8 - 16 + c \\ = 24 + c \\ ( - c)/( - 1) = (24)/( - 1) \\ c = - 24`