-5x(22x-7)=4-3x(x+5)

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Solution for -5x(22x-7)=4-3x(x+5) equation:



-5x(22x-7)=4-3x(x+5)
We move all terms to the left:
-5x(22x-7)-(4-3x(x+5))=0
We multiply parentheses
-110x^2+35x-(4-3x(x+5))=0
We calculate terms in parentheses: -(4-3x(x+5)), so:
4-3x(x+5)
determiningTheFunctionDomain -3x(x+5)+4
We multiply parentheses
-3x^2-15x+4
Back to the equation:
-(-3x^2-15x+4)
We get rid of parentheses
-110x^2+3x^2+15x+35x-4=0
We add all the numbers together, and all the variables
-107x^2+50x-4=0
a = -107; b = 50; c = -4;
Δ = b2-4ac
Δ = 502-4·(-107)·(-4)
Δ = 788
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:
$\sqrt{\Delta}=\sqrt{788}=\sqrt{4*197}=\sqrt{4}*\sqrt{197}=2\sqrt{197}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(50)-2\sqrt{197}}{2*-107}=\frac{-50-2\sqrt{197}}{-214} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(50)+2\sqrt{197}}{2*-107}=\frac{-50+2\sqrt{197}}{-214} $

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