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3 September, 19:18

Evaluate-2x3 - 2x2 - 4x-2 for x=-2.

A.-18

B. 16

C. - 2

D. 14

+2
Answers (1)
  1. 3 September, 19:43
    0
    14

    Step-by-step explanation:

    -2x^3 - 2x^2 - 4x-2

    Let x = - 2

    -2 (-2) ^3 - 2 (-2) ^2 - 4 (-2) - 2

    Exponents first

    -2 (-8) - 2 (4) - 4 (-2) - 2

    Then multiply

    16 - 8 + 8 - 2

    Then add and subtract

    14
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