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babymother [125]

3 years ago

15

If f(x) = 2x2 − 30, find f(4).

1 answer:

Naddik [55]3 years ago

8 0

Just replace x = 4

2x^2 - 30

=2 *(4)^2 -30

= 2 * 16 - 30

= 32 - 30

= 2

Answer is 2

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