X=85x^2

Solution for X=85x^2 equation:

X=85X^2

We move all terms to the left:

X-(85X^2)=0

determiningTheFunctionDomain
-85X^2+X=0

a = -85; b = 1; c = 0;
Δ = b2-4ac
Δ = 12-4·(-85)·0
Δ = 1
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{1}=1$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(1)-1}{2*-85}=\frac{-2}{-170}
=1/85
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(1)+1}{2*-85}=\frac{0}{-170}
=0
$