3x^2-6x=70

Solution for 3x^2-6x=70 equation:

3x^2-6x=70

We move all terms to the left:

3x^2-6x-(70)=0

a = 3; b = -6; c = -70;
Δ = b2-4ac
Δ = -62-4·3·(-70)
Δ = 876
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{876}=\sqrt{4*219}=\sqrt{4}*\sqrt{219}=2\sqrt{219}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-6)-2\sqrt{219}}{2*3}=\frac{6-2\sqrt{219}}{6}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-6)+2\sqrt{219}}{2*3}=\frac{6+2\sqrt{219}}{6}
$