y2+14y+49=6

Solution for y2+14y+49=6 equation:

y2+14y+49=6

We move all terms to the left:

y2+14y+49-(6)=0

We add all the numbers together, and all the variables

y^2+14y+43=0

a = 1; b = 14; c = +43;
Δ = b2-4ac
Δ = 142-4·1·43
Δ = 24
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

The end solution:

$\sqrt{\Delta}=\sqrt{24}=\sqrt{4*6}=\sqrt{4}*\sqrt{6}=2\sqrt{6}$
$y_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-2\sqrt{6}}{2*1}=\frac{-14-2\sqrt{6}}{2}
$
$y_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+2\sqrt{6}}{2*1}=\frac{-14+2\sqrt{6}}{2}
$