Question

If (f + g)(x) = 3x2 + 2x – 1 and g(x) = 2x – 2, what is f(x)?



3x2 + 1



3x2 – 1



3x2 + 4



3x2 – 4



x2 – 2

Answer 1

can you explain a bit

Answer 2

(f+g)(x) is simply = f(x)+g(x)
so f(x)=(f+g)(x)-g(x)

Answer 3

do I just put the numbers in the f and x spots

Answer 4

yup
(3x^2+2x-1)-(2x-2)

Answer 5

thank you

Answer 6

wlcm:)