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15 November, 15:58

Multiply the polynomials (x+4) (x^2-5x+3)

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  1. 15 November, 16:22
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    (4x2 - 4x - 7) (x + 3)

    = (4x2 - 4x - 7) (x) + (4x2 - 4x - 7) (3)

    = 4x2 (x) - 4x (x) - 7 (x) + 4x2 (3) - 4x (3) - 7 (3)

    = 4x3 - 4x2 - 7x + 12x2 - 12x - 21

    = 4x3 - 4x2 + 12x2 - 7x - 12x - 21

    = 4x3 + 8x2 - 19x - 21
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