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20 April, 09:28

Using arithmetic operations, rewrite this polynomial in standard, simplest form.

(3x2 + 9x + 6) - (8x2 + 3x - 10) + (2x + 4) (3x - 7)

x2 + 4x - 12

x2 + 8x - 42

17x2 + 10x - 32

17x2 + 14x + 24

+1
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  1. 20 April, 10:27
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    (3x2 + 9x + 6) - (8x2 + 3x - 10) + (2x + 4) (3x - 7)

    First distribute the (2x+4) (3x-7) to get 6x2-2x-28

    After this just add the like terms for all parts of the expression.

    (3x2-8x2+6x2) + (9x-3x-2x) + (6+10-28)

    x2+4x-12

    So you answer is x2+4x-12
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