X=8(9x/2)

Solution for X=8(9x/2) equation:

X=8(9X/2)

We move all terms to the left:

X-(8(9X/2))=0

We add all the numbers together, and all the variables

X-(8(+9X/2))=0

We multiply all the terms by the denominator


X*2))-(8(+9X=0

We add all the numbers together, and all the variables

9X+X*2))-(8(=0

Wy multiply elements

2X^2+9X=0

a = 2; b = 9; c = 0;
Δ = b2-4ac
Δ = 92-4·2·0
Δ = 81
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{81}=9$
$X_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-9}{2*2}=\frac{-18}{4}
=-4+1/2
$
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+9}{2*2}=\frac{0}{4}
=0
$