81m^2=121

Solution for 81m^2=121 equation:

81m^2=121

We move all terms to the left:

81m^2-(121)=0

a = 81; b = 0; c = -121;
Δ = b2-4ac
Δ = 02-4·81·(-121)
Δ = 39204
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{39204}=198$
$m_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-198}{2*81}=\frac{-198}{162}
=-1+2/9
$
$m_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+198}{2*81}=\frac{198}{162}
=1+2/9
$