Question

Please anyone help me on this

Answer 1

h+2x-8

Explanation:

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Answer 2

a.) x²+h²+2xh-8x-8h

b.) h+2x-8

Explanation:

A.) you just plug in x+h wherever there's an x

which means you have

(x+h)²-8(x+h)

simplify and get

x²+h²+2xh-8x-8h

we already know what f(x+h) is so we just need to subtract f(x) we have

x²+h²+2xh-8x-8h-x²+8x

simplify and get

h²+2xh-8h

Divide this by h and get

h+2x-8