Find f(-2) for the function f(x) = -3x³ - x² + 2x - 8
f(x) = -3x³ - x² + 2x - 8
f(-2) = -3(-2)³ - (-2)² + 2(-2) - 8 {substituted -2 for x} = -3(-8) - 4 - 4 - 8 {evaluated exponents and multiplied} = 24 - 4 - 4 - 8 {multiplied -3 by 4} = 8 {subtracted} See more function examples here or Ask Algebra House Comments are closed.
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