-2r^2-10=-r

Simple and best practice solution for -2r^2-10=-r 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 -2r^2-10=-r equation: 



-2r^2-10=-r

We move all terms to the left:

-2r^2-10-(-r)=0

We add all the numbers together, and all the variables

-2r^2-(-1r)-10=0

We get rid of parentheses

-2r^2+1r-10=0

We add all the numbers together, and all the variables

-2r^2+r-10=0

a = -2; b = 1; c = -10;
Δ = b2-4ac
Δ = 12-4·(-2)·(-10)
Δ = -79
Delta is less than zero, so there is no solution for the equation

See similar equations:

| 5(2.10*x)=49.10 | | 2.10(5*x)=49.10 | | 19.5+2x=20 | | 3-(x+6)=2x | | 6=-9-1.25x | | 9c+4=(9c+5) | | 21m^2+23m-20=0 | | n/5-7=18 | | (5/3)*u=30 | | 2.10(5-x)=49.10 | | 2.10(5+x)=49.10 | | 7-1=23-5y | | (5/3)u=30 | | -4n^2+2n=0 | | x+8.2=101/4 | | 7.5+2x=23.5 | | x+(x+5)+5=1500 | | x+4.6=61/5 | | .66x+11=25 | | x+1.8=6.9 | | 5(2.10-x)=49.10 | | a/5+7=20 | | x+.33=4 | | -5x^2-5x=10 | | 5(2.10+x)=49.10 | | x+41/2=5.2 | | (x-4)(4+x)=54(x-5)(x-10) | | 9r^2+7r=-9 | | 7n-54=10 | | x-3.5=1/4 | | -2.5-2x=-10.5 | | x+4/5=1/2+7/5 |

Equations solver categories