x^2+4x-20=-5x+2

Simple and best practice solution for x^2+4x-20=-5x+2 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 x^2+4x-20=-5x+2 equation:



x^2+4x-20=-5x+2
We move all terms to the left:
x^2+4x-20-(-5x+2)=0
We get rid of parentheses
x^2+4x+5x-2-20=0
We add all the numbers together, and all the variables
x^2+9x-22=0
a = 1; b = 9; c = -22;
Δ = b2-4ac
Δ = 92-4·1·(-22)
Δ = 169
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}$
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}$

$\sqrt{\Delta}=\sqrt{169}=13$
$x_{1}=\frac{-b-\sqrt{\Delta}}{2a}=\frac{-(9)-13}{2*1}=\frac{-22}{2} =-11 $
$x_{2}=\frac{-b+\sqrt{\Delta}}{2a}=\frac{-(9)+13}{2*1}=\frac{4}{2} =2 $

See similar equations:

| 4+2(5)=x | | (2x+5)x=300 | | 2(v-1)-9=-7(-3v+2)-v | | 3.5x-20=2.4x+14 | | 4^2-20x+16=0 | | 90-1.25x=75 | | 7/8m-1/8m=12 | | 226=19x+9 | | 226=19x+4 | | 226=19x+1 | | 5x/13=-16/13 | | 3/5v=-3 | | 2/7w=2 | | 0=2(p+6) | | G(x)=x^2-8 | | 60-p=2(p+6) | | -2(x-5)=-4-2x | | 5x+130=300 | | (4x+3)x=240 | | –3(z–8)=22 | | 5/n=30/450 | | 100-a^2-6a-9=0 | | 1/7(x+6)=5 | | 5x+50=300 | | 30/n=30/450 | | 8n=13 | | 5=-3(x+3)-2x | | 5/12=4/n | | 2x-30+x=3x-30 | | 5/n=6/15 | | 2(3x-4)=6-4(12-x) | | 0=60-(p+6) |

Equations solver categories