X2+16x-22=0

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Solution for X2+16x-22=0 equation:



X2+16X-22=0
We add all the numbers together, and all the variables
X^2+16X-22=0
a = 1; b = 16; c = -22;
Δ = b2-4ac
Δ = 162-4·1·(-22)
Δ = 344
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:
$\sqrt{\Delta}=\sqrt{344}=\sqrt{4*86}=\sqrt{4}*\sqrt{86}=2\sqrt{86}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(16)-2\sqrt{86}}{2*1}=\frac{-16-2\sqrt{86}}{2} $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(16)+2\sqrt{86}}{2*1}=\frac{-16+2\sqrt{86}}{2} $

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