Question

If f(x)=2x²-1, then f(-3)
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Answer 1

17

Explanation:

So you would replace x with -3

2(-3)^2-1

first you would do the exponet

2(9)-1

then you would distribute the 2

18-1

then subtract

17

Answer 2

Answer:
`f(-13)=17`

Explanation:

`f(x)=2x^2-1`

To find
`f(-3)` replace x for -3

`f(-3)=2(-3)^2-1\\f(-3)=2(9)-1\\f(-3)=18-1\\f(-13)=17`