(x-2)(5-x)=x^+3x-10

Solution for (x-2)(5-x)=x^+3x-10 equation:

(x-2)(5-x)=x^+3x-10

We move all terms to the left:

(x-2)(5-x)-(x^+3x-10)=0

We add all the numbers together, and all the variables

(x-2)(-1x+5)-(x^+3x-10)=0

We get rid of parentheses

(x-2)(-1x+5)-x^-3x+10=0

We multiply parentheses ..

(-1x^2+5x+2x-10)-x^-3x+10=0

We add all the numbers together, and all the variables

(-1x^2+5x+2x-10)-4x+10=0

We get rid of parentheses

-1x^2+5x+2x-4x-10+10=0

We add all the numbers together, and all the variables

-1x^2+3x=0

a = -1; b = 3; c = 0;
Δ = b2-4ac
Δ = 32-4·(-1)·0
Δ = 9
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{9}=3$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(3)-3}{2*-1}=\frac{-6}{-2}
=+3
$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(3)+3}{2*-1}=\frac{0}{-2}
=0
$