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23 May, 20:23

5x^6-3x^2+7-2x^6-3x^6+4x^2 for x=-10

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  1. 23 May, 21:36
    0
    107

    Step-by-step explanation:

    These are easier to do if you simplify them first.

    ... = x^6 (5 - 2 - 3) + x^2 (-3 + 4) + 7

    ... = x^2 + 7

    For x = - 10, this is

    ... (-10) ^2 + 7 = 100 + 7 = 107
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