Question

Let f(x) = -3x - 6 and g(x) = 5x + 2.

Find f(x) + g(x)

I got 2x-4 but my study partner is saying it's wrong. I'm confused.

Answer 1

f(x) + g(x) = (-3x - 6) + (5x + 2)

f(x) + g(x) = -3x - 6 + 5x + 2

f(x) + g(x) = (-3x + 5x) + (-6 + 2)

f(x) + g(x) = (-3 + 5)x + (-6 + 2)

f(x) + g(x) = (2)x + (-4)

f(x) + g(x) = 2x - 4

you are correct

Answer 2

Thanks a bunch!

Answer 3

np