4.9(x^2)=1.9

Solution for 4.9(x^2)=1.9 equation:

4.9(x^2)=1.9

We move all terms to the left:

4.9(x^2)-(1.9)=0

We add all the numbers together, and all the variables

4.9x^2-1.9=0

a = 4.9; b = 0; c = -1.9;
Δ = b2-4ac
Δ = 02-4·4.9·(-1.9)
Δ = 37.24
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{37.24}}{2*4.9}=\frac{0-\sqrt{37.24}}{9.8}
=-\frac{\sqrt{}}{9.8}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+\sqrt{37.24}}{2*4.9}=\frac{0+\sqrt{37.24}}{9.8}
=\frac{\sqrt{}}{9.8}
$