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20 September, 00:46

5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

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  1. 20 September, 00:57
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    3x^2 + 6x + 4

    Step-by-step explanation:

    5x ^ 2 + 2x + 11 - 7 + 4x - 2x ^ 2

    Combine like terms

    5x ^ 2 - 2x ^ 2 + 2x + 4x + 11 - 7

    3x^2 + 6x + 4
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