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OpenStudy (anonymous):
Last one tonight: factor 30X^3+42X^2-5X-7
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OpenStudy (zpupster):
do this by grouping (2x^3 + 7x^2) + (4x+14) take out greates common factor x^2(2x + 7) + 2(2x + 7) factor again (x^2 +2)(2x+7)
OpenStudy (anonymous):
correct!
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