7m(7m+12)=-36

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Solution for 7m(7m+12)=-36 equation: 



7m(7m+12)=-36

We move all terms to the left:

7m(7m+12)-(-36)=0

We add all the numbers together, and all the variables

7m(7m+12)+36=0

We multiply parentheses

49m^2+84m+36=0

a = 49; b = 84; c = +36;
Δ = b2-4ac
Δ = 842-4·49·36
Δ = 0
Delta is equal to zero, so there is only one solution to the equation

                              Stosujemy wzór:
$m=\frac{-b}{2a}=\frac{-84}{98}=-6/7$

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