-v^2=81-18v

Simple and best practice solution for -v^2=81-18v 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 -v^2=81-18v equation:


Simplifying
-1v2 = 81 + -18v

Solving
-1v2 = 81 + -18v

Solving for variable 'v'.

Reorder the terms:
-81 + 18v + -1v2 = 81 + -18v + -81 + 18v

Reorder the terms:
-81 + 18v + -1v2 = 81 + -81 + -18v + 18v

Combine like terms: 81 + -81 = 0
-81 + 18v + -1v2 = 0 + -18v + 18v
-81 + 18v + -1v2 = -18v + 18v

Combine like terms: -18v + 18v = 0
-81 + 18v + -1v2 = 0

Factor a trinomial.
(-9 + v)(9 + -1v) = 0

Subproblem 1

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

Subproblem 2

Set the factor '(9 + -1v)' equal to zero and attempt to solve: Simplifying 9 + -1v = 0 Solving 9 + -1v = 0 Move all terms containing v to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1v = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1v = 0 + -9 -1v = 0 + -9 Combine like terms: 0 + -9 = -9 -1v = -9 Divide each side by '-1'. v = 9 Simplifying v = 9

Solution

v = {9, 9}

See similar equations:

| 54-14=5(x-8) | | 5w^2-35w=0 | | 54-14=5(x-8) | | -3x-11x=56 | | x-0.58=1.39 | | 2y^2-16y=0 | | (5y+2)(y+7)=-2(5y+2) | | -5=2x-6 | | x^2-19x+80=0 | | 54+4y-23=15y-11-5y | | 3m+16x=74-6x | | -7-15+7=-15 | | x+50+x=200 | | y+6.9=14.5 | | (4x-5)+(3x+6)= | | -7-15+x=-15 | | x^2+11x-26=0 | | x+18+3x=-21-3x-24 | | -x^2+8x+3= | | 3x^2-x-44= | | 32-12-14=6 | | 19-6(w-2)=7-3w | | n+67=282 | | 36x^2-61x+36=0 | | -x^2+8x+5= | | 21-5x=12+4x | | x-12-14=6 | | x+5=2x-40 | | 3x^2+3x+8=0 | | 5+8-9=4 | | 4x^90=50000 | | 60=6(3x-5) |

Equations solver categories