190=1.5b2

Solution for 190=1.5b2 equation:

190=1.5b^2

We move all terms to the left:

190-(1.5b^2)=0

We get rid of parentheses

-1.5b^2+190=0

a = -1.5; b = 0; c = +190;
Δ = b2-4ac
Δ = 02-4·(-1.5)·190
Δ = 1140
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{1140}=\sqrt{4*285}=\sqrt{4}*\sqrt{285}=2\sqrt{285}$
$b_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-2\sqrt{285}}{2*-1.5}=\frac{0-2\sqrt{285}}{-3}
=-\frac{2\sqrt{285}}{-3}
$
$b_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+2\sqrt{285}}{2*-1.5}=\frac{0+2\sqrt{285}}{-3}
=\frac{2\sqrt{285}}{-3}
$