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# how do you factor -m^2-3m+90

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how do you factor -m^2-3m+90

Feb 7, 2019

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The only reasonable way I can see is to use the quadratic Formula to find the roots....

$$x = {-b \pm \sqrt{b^2-4ac} \over 2a}$$           a = -1    b = -3   c = 90

Feb 7, 2019