(3x^2+4x-8)=(-2x^2+4x+2)=

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Solution for (3x^2+4x-8)=(-2x^2+4x+2)= equation:



(3x^2+4x-8)=(-2x^2+4x+2)=
We move all terms to the left:
(3x^2+4x-8)-((-2x^2+4x+2))=0
We get rid of parentheses
-((-2x^2+4x+2))+3x^2+4x-8=0
We calculate terms in parentheses: -((-2x^2+4x+2)), so:
(-2x^2+4x+2)
We get rid of parentheses
-2x^2+4x+2
Back to the equation:
-(-2x^2+4x+2)
We add all the numbers together, and all the variables
3x^2-(-2x^2+4x+2)+4x-8=0
We get rid of parentheses
3x^2+2x^2-4x+4x-2-8=0
We add all the numbers together, and all the variables
5x^2-10=0
a = 5; b = 0; c = -10;
Δ = b2-4ac
Δ = 02-4·5·(-10)
Δ = 200
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:
$\sqrt{\Delta}=\sqrt{200}=\sqrt{100*2}=\sqrt{100}*\sqrt{2}=10\sqrt{2}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-10\sqrt{2}}{2*5}=\frac{0-10\sqrt{2}}{10} =-\frac{10\sqrt{2}}{10} =-\sqrt{2} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+10\sqrt{2}}{2*5}=\frac{0+10\sqrt{2}}{10} =\frac{10\sqrt{2}}{10} =\sqrt{2} $

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