5.6=1.5x^2

Solution for 5.6=1.5x^2 equation:

5.6=1.5x^2

We move all terms to the left:

5.6-(1.5x^2)=0

We get rid of parentheses

-1.5x^2+5.6=0

a = -1.5; b = 0; c = +5.6;
Δ = b2-4ac
Δ = 02-4·(-1.5)·5.6
Δ = 33.6
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-\sqrt{33.6}}{2*-1.5}=\frac{0-\sqrt{33.6}}{-3}
=-\frac{\sqrt{}}{-3}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{33.6}}{2*-1.5}=\frac{0+\sqrt{33.6}}{-3}
=\frac{\sqrt{}}{-3}
$