4x2=-8-33x

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Solution for 4x2=-8-33x equation:



4x^2=-8-33x
We move all terms to the left:
4x^2-(-8-33x)=0
We add all the numbers together, and all the variables
4x^2-(-33x-8)=0
We get rid of parentheses
4x^2+33x+8=0
a = 4; b = 33; c = +8;
Δ = b2-4ac
Δ = 332-4·4·8
Δ = 961
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{961}=31$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(33)-31}{2*4}=\frac{-64}{8} =-8 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(33)+31}{2*4}=\frac{-2}{8} =-1/4 $

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