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OpenStudy (anonymous):
factor by grouping x3+9x2-7x-63 would the answer be: x2(x+9) - 7(x+9) which equals - (x2-2)(x+9)
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OpenStudy (anonymous):
x^2(x+9)-7(x+9) (x^2-7)(x+9)
OpenStudy (dumbcow):
correct, you had a typo and put 2 instead of 7 though :)
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