4x^2+19x+7=-5

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Solution for 4x^2+19x+7=-5 equation:



4x^2+19x+7=-5
We move all terms to the left:
4x^2+19x+7-(-5)=0
We add all the numbers together, and all the variables
4x^2+19x+12=0
a = 4; b = 19; c = +12;
Δ = b2-4ac
Δ = 192-4·4·12
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(19)-13}{2*4}=\frac{-32}{8} =-4 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(19)+13}{2*4}=\frac{-6}{8} =-3/4 $

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