(v+2)(v-4)-7=0

Simple and best practice solution for (v+2)(v-4)-7=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+2)(v-4)-7=0 equation: 


Simplifying
(v + 2)(v + -4) + -7 = 0

Reorder the terms:
(2 + v)(v + -4) + -7 = 0

Reorder the terms:
(2 + v)(-4 + v) + -7 = 0

Multiply (2 + v) * (-4 + v)
(2(-4 + v) + v(-4 + v)) + -7 = 0
((-4 * 2 + v * 2) + v(-4 + v)) + -7 = 0
((-8 + 2v) + v(-4 + v)) + -7 = 0
(-8 + 2v + (-4 * v + v * v)) + -7 = 0
(-8 + 2v + (-4v + v2)) + -7 = 0

Combine like terms: 2v + -4v = -2v
(-8 + -2v + v2) + -7 = 0

Reorder the terms:
-8 + -7 + -2v + v2 = 0

Combine like terms: -8 + -7 = -15
-15 + -2v + v2 = 0

Solving
-15 + -2v + v2 = 0

Solving for variable 'v'.

Factor a trinomial.
(-3 + -1v)(5 + -1v) = 0


Subproblem 1
Set the factor '(-3 + -1v)' equal to zero and attempt to solve:

Simplifying
-3 + -1v = 0

Solving
-3 + -1v = 0

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

Add '3' to each side of the equation.
-3 + 3 + -1v = 0 + 3

Combine like terms: -3 + 3 = 0
0 + -1v = 0 + 3
-1v = 0 + 3

Combine like terms: 0 + 3 = 3
-1v = 3

Divide each side by '-1'.
v = -3

Simplifying
v = -3

Subproblem 2
Set the factor '(5 + -1v)' equal to zero and attempt to solve:

Simplifying
5 + -1v = 0

Solving
5 + -1v = 0

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

Add '-5' to each side of the equation.
5 + -5 + -1v = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -1v = 0 + -5
-1v = 0 + -5

Combine like terms: 0 + -5 = -5
-1v = -5

Divide each side by '-1'.
v = 5

Simplifying
v = 5
Solution
v = {-3, 5}

See similar equations:

| -1.5-5x=110 | | 2w^2-18w+16=0 | | 2x/3y*9y/4x | | 20t=-10 | | 2=​2/​​m​​−7 | | (n-1)(n+1)-90.33=0 | | 9+15y-4=9y+85-4y | | -5n=11 | | 2x+68=6x-60 | | (8x^6)^1/2 | | 3x+(x-1)=3 | | 800+30x=150+20x | | 4x^1/2/(4x)^1/2 | | 7p-pq-8pr= | | -4h=12 | | abs(2x-5)=abs(x+2) | | 4.82=156.891 | | 7+19s-2=9s+56-7s | | x-6.23=.15x | | h-14=10 | | Z^2-15z+36=0 | | 60/360*2(3.14)12 | | -12-9,0-3=-12/-3 | | -246+108x^2+2x=0 | | http://goo.gl/zGa7c7 | | -12-9,0-3= | | D^2+4d=0 | | G^2-7g-18=0 | | 14(v+4)-2v=3(4v+3)-14 | | 2x+10+3=180 | | 3(6a+5)= | | 4x+27x-40=0 |

Equations solver categories