8x^2=-6x+4

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Solution for 8x^2=-6x+4 equation:



8x^2=-6x+4
We move all terms to the left:
8x^2-(-6x+4)=0
We get rid of parentheses
8x^2+6x-4=0
a = 8; b = 6; c = -4;
Δ = b2-4ac
Δ = 62-4·8·(-4)
Δ = 164
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:
$\sqrt{\Delta}=\sqrt{164}=\sqrt{4*41}=\sqrt{4}*\sqrt{41}=2\sqrt{41}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(6)-2\sqrt{41}}{2*8}=\frac{-6-2\sqrt{41}}{16} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(6)+2\sqrt{41}}{2*8}=\frac{-6+2\sqrt{41}}{16} $

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