-x^2-2x+9=3x+20

Simple and best practice solution for -x^2-2x+9=3x+20 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^2-2x+9=3x+20 equation: 



-x^2-2x+9=3x+20

We move all terms to the left:

-x^2-2x+9-(3x+20)=0

We add all the numbers together, and all the variables

-1x^2-2x-(3x+20)+9=0

We get rid of parentheses

-1x^2-2x-3x-20+9=0

We add all the numbers together, and all the variables

-1x^2-5x-11=0

a = -1; b = -5; c = -11;
Δ = b2-4ac
Δ = -52-4·(-1)·(-11)
Δ = -19
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 3(-2x+4)=-6 | | 26=3d-4 | | 6x+2(-4x+3)=-18 | | 7c-4c-3c+5c=16 | | (e+2)×5=20 | | 20+x=1540 | | 90=10+8k | | 90=12=3x | | 2y(11+5)=97 | | 7x^2+12=14x+5 | | 4u+3u-3u-2u=16 | | 8x9=63 | | 13=4x+7(-2x+9) | | 3b−2= | | -2x+3=3x-21 | | k2+4K=-3 | | 3=5+2p | | -5=1/4x | | 5t+12t-11t+16t+20t=18 | | 4x-6(-3x+4)=86 | | 2p+3(4.5)=10/5 | | -2+-y=-4 | | -3k+-2k+-8k= | | 2x-3(x+6)=-26 | | -6x-2(-5x+4)=12 | | 3(3x+6)=24 | | 318-2g=4g | | 13x-6x+2x=18 | | 60=20x+20 | | 8d+2+5d+7= | | 3(g-2)=5(g+8) | | 10x-7=7x+4 |

Equations solver categories