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3 December, 02:18

Write the expression 5x+4x^2 (2x+7) - 6x^2-9x as a polynomial in standard form

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  1. 3 December, 03:13
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    5x + 4x² (2x + 7) - 6x² - 9x

    5x + 8x³ + 28x² - 6x² - 9x

    8x³ + 22x² - 4x

    This can be simplified to:

    2x (4x² + 11x - 2)

    I don't know which of those answers you are looking for.
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