- #1

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## Homework Statement

evaluate f(x+h) expand and simplfy f(x)=x^3-7x^2+x+1?

## Homework Equations

f(x+h)

## The Attempt at a Solution

my attempt (f(x+h)+f(x)+1

x^2(x+h)+x+1

x^2(x+7)+x1

im lost I'm not sure how to do this

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- Thread starter psp101
- Start date

- #1

- 8

- 0

evaluate f(x+h) expand and simplfy f(x)=x^3-7x^2+x+1?

f(x+h)

my attempt (f(x+h)+f(x)+1

x^2(x+h)+x+1

x^2(x+7)+x1

im lost I'm not sure how to do this

- #2

- 9,559

- 770

Replace the x's with x+h and simplify.

- #3

- 8

- 0

Replace the x's with x+h and simplify.

o really so is it like

f(x)=(x+h)^3-7(x+h)^2+(x+h)+1

then I simplify

- #4

- 9,559

- 770

o really so is it like

f(x)=(x+h)^3-7(x+h)^2+(x+h)+1

then I simplify

Yes.

yeah but the original equation is usually set up at(when u are evaluating the limit) (x+h)-f(x), so you have to minus the original function from the (x+h)^3-7(x+h)^2+(x+h)+1, you will just end up with the first derivative.

No you won't. There is more to it than that, and that's not what psp101 asked anyway.

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