X2-4x=5x

Simple and best practice solution for X2-4x=5x equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for X2-4x=5x equation:



X2-4X=5X
We move all terms to the left:
X2-4X-(5X)=0
We add all the numbers together, and all the variables
X^2-9X=0
a = 1; b = -9; c = 0;
Δ = b2-4ac
Δ = -92-4·1·0
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*1}=\frac{0}{2} =0 $
$X_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-9)+9}{2*1}=\frac{18}{2} =9 $

See similar equations:

| -8x=-2(x+8) | | 7x+5+1-3x=-4x+6 | | 108=3x^2 | | 4(3y-1)=3(2y)=12 | | 24x-52x=-4(1+6x) | | r/10+67=70 | | 0=3x2-8x+5 | | 7(3x-5)=112 | | 2(m+3)=-5+3m | | x=25x29700 | | -7w/6=-35 | | f(-3)=-3-14 | | (z-2)(2z^2-6z+9)=0 | | 2x+2+1=4x-2x+1 | | b*b=1/125 | | b*b*b=1/125 | | –8–x=–3(2x–4)+3x | | 55000-850t=41000-500t | | 5z+2/3=2 | | 34-10x=13+11x | | 3.x+6=33 | | 3x-2.1=1.2 | | 2r-2r=-1/3 | | -10=1.66666667u | | 11x+7=13x-3 | | 1x+6=5 | | 17/8w=-1121/4 | | 3.6x-1.2=0.8-x | | 11.8(-2b+38)=-47.2(8b+49) | | -10=5/3u | | 30-c=50-c×3 | | ((x/60)+(x/40)=1)*12 |

Equations solver categories