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1 November, 19:46

Perform the indicated operation (7x4 + 11x3 - x2 - 8x + 6) - (-12x4 + 9x2 - 15)

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  1. 1 November, 20:15
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    Combine like terms.

    Like terms have the same variable raised to the same power.

    7x^4 + 12x^4 = 19x^4

    11x^3

    -x^2 - 9x^2 = - 10x^2

    -8x

    6 + 15 = 21

    19x^4 + 11x^3 - 10x^2 - 8x + 21
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