Question

If f(x)=4x^2+x, find f(x+h)-f(x)
Show work if you can pls

Answer 1

F(x+h)=4(x+h)^2 + (x+h)

4(x^2 + 2xh + h^2) + (x+h)

4x^2 +8xh + 4h^2 + x + h

-4x^2 -x

Explanation:

I just did this in a test.

Answer 2

F(x+h)=4(x+h)^2 + (x+h)
4(x^2 + 2xh + h^2) + (x+h)
4x^2 +8xh + 4h^2 + x + h
-4x^2 -x

Answer in different forms:
8xh +4h^2+h
h(8x+4h+1)