MATH

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combine like terms

is this correct


(5x^2+6x+8)+(6x^3 +2x^2-4x)
= 6x^3+7x^2+2x+8

  • MATH -

    correct.

  • MATH -

    please help

    execute the indicated multiplications.

    (x-2)(x^2+2x+4)

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