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28 February, 21:13

Simplify the expression: x2+x (x-5) - x+7

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  1. 28 February, 21:36
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    I'm assuming that by x2 you mean x^2 (x squared?)

    If so:

    Expand x (x-5) to get x^2+x^2-5x-x+7, then combine terms to get 2x^2-6x+7.
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