algebra

Multiply
-5x+4 by 4x^2+x

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  1. (-5X^2+4)(4X^2+X).
    When multiplying, you add the exponents.

    1. Multiply -5x^2 by each term in the 2nd parenthesis.

    2. Multiply 4 by each term in the 2nd parenthesis.

    3. Combine like-terms.

    -20X^3-5X^2 + 16X^2+4X =
    -20X^3+11X^2+4X.

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