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22 January, 21:25

9x2 - 6xy

Factorise Fully

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  1. 22 January, 22:22
    0
    Remember distributive property, but reverse it

    ab-ac=a (b-c)

    a is a common factor

    find common factors

    factor each

    9x^2=3*3*x*x

    6xy=2*3*x*y

    common factor is 3*x or 3x

    9x^2-6xy=3x (3x) - 3x (2y) = 3x (3x-2y)

    factored form is 3x (3x-2y)
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