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Mathematics 20 Online
OpenStudy (anonymous):

x^2-x-72 is there an easier way to solve this problem besides trial and error?

hero (hero):

You don't need to use trial and error... x^2 -9x + 8x - 72 x(x-9)+8(x-9) (x-9)(x+8) by distributive rule

hero (hero):

snaef999 is typing something very interesting

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