Question

If f(x) = 3x2 + 2x – 1, the value of f(2) is:

Answer 1

$f(2) \: = \: 3 ( {2})^{2} \: - 2(2) \: - 1$

= 3 ( 4 ) - 4 - 1

= 12 - 5

= 7.

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Answer 2

Step-by-step explanation:

3x²+2x-1

putx=2

3(2)²+2(2)-1

3(4)+4-1

12+4-1

16-1

15

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