SOLUTION: i need help with these questions. if f(x)=2x^2=7x+3 find f(2) and f(-3)

Question 112081: i need help with these questions.
if f(x)=2x^2=7x+3 find f(2) and f(-3)
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!

Start with the given function.

Plug in . In other words, replace each x with 2.

Evaluate to get 4.

Multiply 2 and 4 to get 8

Multiply 7 and 2 to get 14

Now combine like terms

-----------Now let's evaluate another value---------

Start with the given function.

Plug in . In other words, replace each x with -3.

Evaluate to get 9.

Multiply 2 and 9 to get 18

Multiply 7 and -3 to get -21

Now combine like terms

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