SOLUTION: Given that {{{ f(x)=3x^2-7x+1 }}} find f(-1) find f(x+1) find f(x+h) I have spent a lot of time on these problems, and I must be missing something because I cannot get them r

Question 273823: Given that
find f(-1)
find f(x+1)
find f(x+h)
I have spent a lot of time on these problems, and I must be missing something because I cannot get them right.
My answer for the second one was
for the third one was
My answer for the first was the most confusing of all, depending on whether I entered it entirely into my calculator, and if I broke the problem into segments ( vs my answer changed. The first was 11, the second was -3.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
# 1

Start with the given equation.

Plug in .

Square to get .

Multiply and to get .

Multiply and to get .

Combine like terms.

------------------------------------------------------------------------

# 2

Start with the given equation.

Replace each 'x' with 'x+1'.

FOIL

Distribute

Combine like terms.

------------------------------------------------------------------------

# 3

Start with the given equation.

Replace each 'x' with 'x+h'.

FOIL

Distribute
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