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OpenStudy (anonymous):
how do you factorise 3(x^2-20)-31x? pls help!!!!
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OpenStudy (callisto):
3(x^2-20)-31x = 3x^2 -31x - 60 = (x-12) (3x+5)
OpenStudy (anonymous):
thanks!!
OpenStudy (callisto):
welcome
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