0.9x^2=29

Solution for 0.9x^2=29 equation:

0.9x^2=29

We move all terms to the left:

0.9x^2-(29)=0

a = 0.9; b = 0; c = -29;
Δ = b2-4ac
Δ = 02-4·0.9·(-29)
Δ = 104.4
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{104.4}}{2*0.9}=\frac{0-\sqrt{104.4}}{1.8}
=-\frac{\sqrt{}}{1.8}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{104.4}}{2*0.9}=\frac{0+\sqrt{104.4}}{1.8}
=\frac{\sqrt{}}{1.8}
$