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21 October, 03:13

Reduce - 2 + b2 by 7 + b2.

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  1. 21 October, 06:35
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    To simplify (-2+b^2) - (7+b^2), first distribute the - 1 to both terms in the second parenthesis.

    -2+b^2-7-b^2

    Combine like terms.

    -9 (1-1=0, so the b^2 is canceled out.)

    (-2+b^2) - (7+b^2) = - 9
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