Question

Using the completing-the-square method, rewrite f(x) = x^2 + 4x − 1 in vertex form.
f(x) = (x + 2)2 + 1
f(x) = (x + 2)2
f(x) = (x + 2)2 + 4
f(x) = (x + 2)2 − 5

Answer 1

@pooja195 @jjamz87

Answer 2

@Baby_Ruth @Tazmaniadevil

Answer 3

@KAKES1967 @Howard-Wolowitz

Answer 4

@Rippeh @Jakobalbert