How to factor a trinomial when its in a different order ?

Like 49x^2 - 28xy + 4y^2

how do you get it in x^2 - x - 12 format ?

2 Answers

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  • Anonymous
    8 years ago
    Favorite Answer

    You can't get it in that format, since it has two variables x and y. but you know the factorization will be of the form

    ( _ x + _ y) ( _ x + _ y)

    and its a matter of filling in the blanks to get the coefficients right. Once you realize that, the problem is no more difficult than factoring 49x^2 - 28x + 4. there are just some extra y's flying around!

    In this case, you get

    (7x + 2y) (7x + 2y) = (7x + 2y)^2

  • 8 years ago

    ( 7x - 2y )^2

    Source(s): my brain
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