(2/3)x=266

Solution for (2/3)x=266 equation:

(2/3)x=266

We move all terms to the left:

(2/3)x-(266)=0


Domain of the equation: 3)x!=0

x!=0/1

x!=0

x∈R


We add all the numbers together, and all the variables

(+2/3)x-266=0

We multiply parentheses

2x^2-266=0

a = 2; b = 0; c = -266;
Δ = b2-4ac
Δ = 02-4·2·(-266)
Δ = 2128
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:

$\sqrt{\Delta}=\sqrt{2128}=\sqrt{16*133}=\sqrt{16}*\sqrt{133}=4\sqrt{133}$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(0)-4\sqrt{133}}{2*2}=\frac{0-4\sqrt{133}}{4}
=-\frac{4\sqrt{133}}{4}
=-\sqrt{133}
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(0)+4\sqrt{133}}{2*2}=\frac{0+4\sqrt{133}}{4}
=\frac{4\sqrt{133}}{4}
=\sqrt{133}
$