8-8x2+3=0

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Solution for 8-8x2+3=0 equation:



8-8x^2+3=0
We add all the numbers together, and all the variables
-8x^2+11=0
a = -8; b = 0; c = +11;
Δ = b2-4ac
Δ = 02-4·(-8)·11
Δ = 352
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:
$\sqrt{\Delta}=\sqrt{352}=\sqrt{16*22}=\sqrt{16}*\sqrt{22}=4\sqrt{22}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-4\sqrt{22}}{2*-8}=\frac{0-4\sqrt{22}}{-16} =-\frac{4\sqrt{22}}{-16} =-\frac{\sqrt{22}}{-4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+4\sqrt{22}}{2*-8}=\frac{0+4\sqrt{22}}{-16} =\frac{4\sqrt{22}}{-16} =\frac{\sqrt{22}}{-4} $

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