X2+16x=346

Solution for X2+16x=346 equation:

X2+16X=346

We move all terms to the left:

X2+16X-(346)=0

We add all the numbers together, and all the variables

X^2+16X-346=0

a = 1; b = 16; c = -346;
Δ = b2-4ac
Δ = 162-4·1·(-346)
Δ = 1640
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:

$\sqrt{\Delta}=\sqrt{1640}=\sqrt{4*410}=\sqrt{4}*\sqrt{410}=2\sqrt{410}$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(16)-2\sqrt{410}}{2*1}=\frac{-16-2\sqrt{410}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(16)+2\sqrt{410}}{2*1}=\frac{-16+2\sqrt{410}}{2}
$