(v-9)(v+2)=0

Simple and best practice solution for (v-9)(v+2)=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 (v-9)(v+2)=0 equation: 


Simplifying
(v + -9)(v + 2) = 0

Reorder the terms:
(-9 + v)(v + 2) = 0

Reorder the terms:
(-9 + v)(2 + v) = 0

Multiply (-9 + v) * (2 + v)
(-9(2 + v) + v(2 + v)) = 0
((2 * -9 + v * -9) + v(2 + v)) = 0
((-18 + -9v) + v(2 + v)) = 0
(-18 + -9v + (2 * v + v * v)) = 0
(-18 + -9v + (2v + v2)) = 0

Combine like terms: -9v + 2v = -7v
(-18 + -7v + v2) = 0

Solving
-18 + -7v + v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-2 + -1v)(9 + -1v) = 0


Subproblem 1
Set the factor '(-2 + -1v)' equal to zero and attempt to solve:

Simplifying
-2 + -1v = 0

Solving
-2 + -1v = 0

Move all terms containing v to the left, all other terms to the right.

Add '2' to each side of the equation.
-2 + 2 + -1v = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -1v = 0 + 2
-1v = 0 + 2

Combine like terms: 0 + 2 = 2
-1v = 2

Divide each side by '-1'.
v = -2

Simplifying
v = -2

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 = {-2, 9}

See similar equations:

| 0.1(x+50)0.7x=21 | | -4z-6=3z+1 | | -6x+12=-2(4x+3) | | 3(3t+3)=3(-3t+-39) | | 0.02x+0.01(5000-x)=89 | | 5(x+2)-3x+3(x+4)=32 | | 0.2(x-2)=3.0 | | 0.33333x-3=-9 | | -32-33= | | -5x+11=-2(4x+2) | | 2.1x+.4=1.6x+2.4 | | 6(x+8)+x=4(x+5)+6 | | 3*-8-4(2)= | | 3*8-4(2)= | | 92+y=92 | | 0.1x-2.9=0.4(x-5) | | 10+6x=15+9x-3x | | 13x-72y=92 | | 65y=5-6x | | 8+3n+6n+7=87 | | 4.9x^2-7.7x-1.8=0 | | .33x=.4x+.66 | | (7t+4)(3t-8)=0 | | 4x+2=-6+2x+22 | | 2y-15=60x | | -(-3y-3)=3(3y-13) | | -86=6x+2x+2 | | x=150x+2500 | | 3x^2-56=19 | | 4x-1=-4+4x+3 | | 9x-y=64 | | 5(3m+5)=-(m+23) |

Equations solver categories