25x2+100x+4=0

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Solution for 25x2+100x+4=0 equation:



25x^2+100x+4=0
a = 25; b = 100; c = +4;
Δ = b2-4ac
Δ = 1002-4·25·4
Δ = 9600
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:
$\sqrt{\Delta}=\sqrt{9600}=\sqrt{1600*6}=\sqrt{1600}*\sqrt{6}=40\sqrt{6}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(100)-40\sqrt{6}}{2*25}=\frac{-100-40\sqrt{6}}{50} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(100)+40\sqrt{6}}{2*25}=\frac{-100+40\sqrt{6}}{50} $

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