3 years ago

How do solve for 2m2 +2m-12=0 This if quadratic formula

1 answer:

6 0

$2m^2 +2m-12=0 \ /:2\\ \\m^2+m-6=0\\ \\m^2+3m-2m-6=0\\ \\m(m+3)-2(m+3)=0\\ \\(m+3)(m-2)=0\\ \\m+3=0\ \ \ \vee\ \ \ m-2=0\\ \\.\ \ \ \ m=-3\ \ \ \ \ \ \ \ \ \ \ \ m=2$

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4 years ago