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Mathematics 15 Online
OpenStudy (anonymous):

Simplify. ((-7x(9-x ^{2}))\div(7-x))*((-3(x ^{2}-14x+49))\div(28(x ^{3}-x ^{2}-6x)))

OpenStudy (anonymous):

\[-((x+3)(x-7)) \div (4(x+2))\]

OpenStudy (anonymous):

its what i got but i would really appreciate someone double checking me.

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