(X+.033)(x-0.16)=0

Solution for (X+.033)(x-0.16)=0 equation:

(X+.033)(X-0.16)=0

We add all the numbers together, and all the variables

(X+0.033)(X-0.16)=0

We multiply parentheses ..

(+X^2-0.16X+0.033X-0.00528)=0

We get rid of parentheses

X^2-0.16X+0.033X-0.00528=0

We add all the numbers together, and all the variables

X^2-0.127X-0.00528=0

a = 1; b = -0.127; c = -0.00528;
Δ = b2-4ac
Δ = -0.1272-4·1·(-0.00528)
Δ = 0.037249
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-0.127)-\sqrt{0.037249}}{2*1}=\frac{0.127-\sqrt{0.037249}}{2}
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-0.127)+\sqrt{0.037249}}{2*1}=\frac{0.127+\sqrt{0.037249}}{2}
$