196x2-49=0

Solution for 196x2-49=0 equation:

196x^2-49=0

a = 196; b = 0; c = -49;
Δ = b2-4ac
Δ = 02-4·196·(-49)
Δ = 38416
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{38416}=196$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-196}{2*196}=\frac{-196}{392}
=-1/2
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+196}{2*196}=\frac{196}{392}
=1/2
$