4x^2+70x-74=0

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Solution for 4x^2+70x-74=0 equation:



4x^2+70x-74=0
a = 4; b = 70; c = -74;
Δ = b2-4ac
Δ = 702-4·4·(-74)
Δ = 6084
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{6084}=78$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(70)-78}{2*4}=\frac{-148}{8} =-18+1/2 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(70)+78}{2*4}=\frac{8}{8} =1 $

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