12m2+11m=15

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Solution for 12m2+11m=15 equation:



12m^2+11m=15
We move all terms to the left:
12m^2+11m-(15)=0
a = 12; b = 11; c = -15;
Δ = b2-4ac
Δ = 112-4·12·(-15)
Δ = 841
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{841}=29$
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(11)-29}{2*12}=\frac{-40}{24} =-1+2/3 $
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(11)+29}{2*12}=\frac{18}{24} =3/4 $

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