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26 January, 23:24

Simplify - 28b^3 + (-13b^3)

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  1. 26 January, 23:39
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    -41b^3

    Step-by-step explanation:

    collect the terms

    since 13b^3 is negative you subtract

    -28b^3 - 13b^3

    = - 41b^3
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