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SOLUTION: HElp f(x)=-2x(cubed)+5x(squared)-x-1 find (a)f(-1), (b)f(0), and (c)f(2) thanks Heather
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Question 110902
:
HElp
f(x)=-2x(cubed)+5x(squared)-x-1
find (a)f(-1), (b)f(0), and (c)f(2)
thanks
Heather
Answer by
jim_thompson5910(33401)
(
Show Source
):
You can
put this solution on YOUR website!
Lets evaluate
Start with the given polynomial
Plug in
Evaluate
to get -1
Evaluate
to get 1
Multiply -2 and -1 to get 2
Multiply 5 and 1 to get 5
Now combine like terms
So when
,
Lets evaluate
Start with the given polynomial
Plug in
Evaluate
to get 0
Evaluate
to get 0
Multiply -2 and 0 to get 0
Multiply 5 and 0 to get 0
Now combine like terms
Lets evaluate
Start with the given polynomial
Plug in
Evaluate
to get 8
Evaluate
to get 4
Multiply -2 and 8 to get -16
Multiply 5 and 4 to get 20
Now combine like terms