2x^2-6x-2x-5=-3x+9

Simple and best practice solution for 2x^2-6x-2x-5=-3x+9 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 2x^2-6x-2x-5=-3x+9 equation:



2x^2-6x-2x-5=-3x+9
We move all terms to the left:
2x^2-6x-2x-5-(-3x+9)=0
We add all the numbers together, and all the variables
2x^2-8x-(-3x+9)-5=0
We get rid of parentheses
2x^2-8x+3x-9-5=0
We add all the numbers together, and all the variables
2x^2-5x-14=0
a = 2; b = -5; c = -14;
Δ = b2-4ac
Δ = -52-4·2·(-14)
Δ = 137
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(-5)-\sqrt{137}}{2*2}=\frac{5-\sqrt{137}}{4} $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(-5)+\sqrt{137}}{2*2}=\frac{5+\sqrt{137}}{4} $

See similar equations:

| 0.5=0.85^(n-3) | | 5x+5=×2-12 | | 6x-15=95 | | 153+60x+8x^2=49 | | 5481.04=4000(1+(x)/(4))^(20) | | 1/2x+16=1/4x+18.5 | | -6m+4=106 | | 0.25+22-d=10.75 | | 12x+16=14x+18.5 | | 90/n=120/80 | | 3(4x-8)=12* | | 43-x=11-x | | 2x+6-4(x+1)=7 | | 2q2-6=-3q | | 5(6x+3)=315 | | -11=-9(1-3r)-2 | | 4(10-n)=7+n | | 15y-3=3y+1 | | 10x-3=5-2x | | 8*a=288 | | 10(x+6)-20x=-40 | | 1c^2-6c-1=0 | | (X-1)(x-2)(x+4)(x+5)=112 | | -65=n+8(1+9n) | | 1/10(x+11)=-2(x-8) | | -1/3=4/7u-1/2 | | x−9=12 | | (x+12)+(3x-2)+(4x-16)=180 | | 2+4x-15=8 | | 1(x+10)=1.5x | | -6v=180 | | 12(x+-5)=-36 |

Equations solver categories