18=-x^2-8x

Simple and best practice solution for 18=-x^2-8x 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 18=-x^2-8x equation: 



18=-x^2-8x

We move all terms to the left:

18-(-x^2-8x)=0

We get rid of parentheses

x^2+8x+18=0

a = 1; b = 8; c = +18;
Δ = b2-4ac
Δ = 82-4·1·18
Δ = -8
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 6/9=16/2x | | 7x+2x=-63 | | x^2+3x-130=0* | | -3y+18=5y+2 | | 2q-q=8 | | 6(9-5x)=4x= | | x^2-6x-55=0* | | 16j-13j=15 | | 13=r2 | | 2(u-2)=6u+2-2(-4u-6) | | 3/9x=39 | | 6.4g+4=4.4g+10 | | t÷5=25 | | .24x=0.18 | | .24x=0.18 | | 8t+56=(t+) | | 5f-31=49 | | 7w+4=95 | | 4(8x-7)+99=34 | | 4(8x-7)+99=103 | | –12b+–3b−3b−–17b−–13b=12 | | p+5=1 | | x+42+60+90=180 | | 10^2x=172 | | 1000=x(3x)(4x) | | 6x-10=4×+18 | | 10v+–12v=–14 | | 2(3x-17)=26 | | 50=2x-38 | | 10^2x-6=166 | | u+24=35 | | 7(1/3)-2y=7 |

Equations solver categories