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18 April, 17:21

Left parenthesis, minus, x, cubed, minus, x, right parenthesis, plus, left parenthesis, 6, x, squared, plus, 6, x, minus, 7, right parenthesis, equals

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  1. 18 April, 18:45
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    (-x³ - x) + (6x² + 6x - 7)

    = - x³ + 6x² + 5x - 7

    Step-by-step explanation:

    Given the function:

    (-x³ - x) + (6x² + 6x - 7)

    This can be simplified to

    -x³ - x + 6x² + 6x - 7

    Collecting like terms, we have

    -x³ + 6x² - x + 6x - 7

    = - x³ + 6x² + 5x - 7
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