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5 March, 09:42

Solve x²-x-30=0 using the factorisation method.

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  1. 5 March, 13:30
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    Step-by-step explanation:

    x²-x-30=0

    x² - 6x + 5x - 30 = 0

    (x² - 6x) + (5x - 30) = 0

    x (x - 6) + 5 (x - 6) = 0

    (x + 5) (x - 6) = 0

    x + 5 = 0 or x - 6 = 0

    x = - 5 or x = 6
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