X*(x+14)=176

Solution for X*(x+14)=176 equation:

X(X+14)=176

We move all terms to the left:

X(X+14)-(176)=0

We multiply parentheses

X^2+14X-176=0

a = 1; b = 14; c = -176;
Δ = b2-4ac
Δ = 142-4·1·(-176)
Δ = 900
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{900}=30$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(14)-30}{2*1}=\frac{-44}{2}
=-22
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(14)+30}{2*1}=\frac{16}{2}
=8
$