7u^2+9u=0

Simple and best practice solution for 7u^2+9u=0 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 7u^2+9u=0 equation:


Simplifying
7u2 + 9u = 0

Reorder the terms:
9u + 7u2 = 0

Solving
9u + 7u2 = 0

Solving for variable 'u'.

Factor out the Greatest Common Factor (GCF), 'u'.
u(9 + 7u) = 0

Subproblem 1

Set the factor 'u' equal to zero and attempt to solve: Simplifying u = 0 Solving u = 0 Move all terms containing u to the left, all other terms to the right. Simplifying u = 0

Subproblem 2

Set the factor '(9 + 7u)' equal to zero and attempt to solve: Simplifying 9 + 7u = 0 Solving 9 + 7u = 0 Move all terms containing u to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + 7u = 0 + -9 Combine like terms: 9 + -9 = 0 0 + 7u = 0 + -9 7u = 0 + -9 Combine like terms: 0 + -9 = -9 7u = -9 Divide each side by '7'. u = -1.285714286 Simplifying u = -1.285714286

Solution

u = {0, -1.285714286}

See similar equations:

| 3nsquared=300 | | 12x-4xsquared=0 | | 1.25y=x-5 | | x-5=1.25y | | 0.8y=4+-x | | 9y^2+17y+20=4-7y | | 0.2y=-0.8-x | | x^2-4x+16=4x | | 2(x+2)-3(3x-3)=x+7 | | 1.666666667y=5+-x | | 0.25y=-0.5+-x | | 0.25y=-x-0.5 | | x=-0.5+-0.25y | | 5y=x-3.5 | | 3z/7-5=2 | | 2x-10y=7 | | 8-(1-3x)=13 | | 20y^2+3y=5y^2+5y+1 | | -9y^2+wy-x=0forw | | 4/5p=-1/2,2 | | 8(3x-8)=34 | | 7(9x-6)=33 | | z/10-8=7 | | 33-4x=5-8x | | 3nsq=75 | | n-2=20 | | 2x+4=5-(-2x) | | 2-3x(1-x)=3x^2 | | 7+78x=39+10 | | -x^2+x^2=3+1 | | 9x-ax=6-b | | 9x+b=ax+6 |

Equations solver categories