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Math Help - Factorising

  1. #1
    Member Mr Rayon's Avatar
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    Talking Factorising

    Factorise:

    15x-10xy+12-8y
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  2. #2
    Super Member

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    Hello, Mr Rayon!

    Factor: . 15x-10xy+12-8y
    Are you familiar with "factor by grouping"?

    Factor in pairs: . 5x(3 - 2y) + 4(3 - 2y)
    . . . . . . . . . . . . . . . \uparrow\qquad\qquad\quad\uparrow
    . . . . . . . . . . . . . .
    a common factor

    Factor it out: . (3 - 2y)(5x + 4)

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