What would be the next step when factoring:
Last edited by foreverbrokenpromises; September 15th 2009 at 03:59 PM.
Reason: forgot something
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Factor by grouping.
it doesnt work ):
first steps can be: Spoiler: Spoiler: Spoiler:
Factoring by Grouping MAY work:
x^3 - 3x^2 - x^2 + x^2 + 3x - 4x + 4x - 28 =
(x^3 - 3x^2 - x^2) + (x^2 - 4x) + (3x + 4x - 28) =
(x^3 - 4x^2) + (x^2 - 4x) + (7x - 28) =
x^2(x - 4) + x(x - 4) + 7(x - 4) =
Well, i think you can finish this easily, . . . .
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