### Question Description

## Final Answer

*f(x) = 3x^2 - 4 when x = 2*

*f(2) = 3(2)^2 - 4 = 3(4) - 4 = 12 - 4 = 8*

*f(x) = 5x^2 + 6x + 1 when x = 3*

*f(3) = 5(3)^2 + 6(3) + 1 = 5(9) + 18 + 1 = 45 + 18 + 1 = 64*

*f(x) = 6x^2 + 3x - 11 when x = -2*

*f(x) = 6(-2)^2 + 3(-2) - 11 = 6(4) - 6 - 11 = 24 - 17 = 7*

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