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OpenStudy (anonymous):
how do you solve 7x^3-49x ?
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OpenStudy (katrinakaif):
Take out the GCF here: 7x^3 - 49x 7x(x^2 - 7)
OpenStudy (anonymous):
Thanks
OpenStudy (anonymous):
7x( x^2-7) = 7x(x-sqt(7))(x+sqrt(7))
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