(X-3)*(2X+8)=0

Simple and best practice solution for (X-3)*(2X+8)=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 (X-3)*(2X+8)=0 equation:


Simplifying
(X + -3)(2X + 8) = 0

Reorder the terms:
(-3 + X)(2X + 8) = 0

Reorder the terms:
(-3 + X)(8 + 2X) = 0

Multiply (-3 + X) * (8 + 2X)
(-3(8 + 2X) + X(8 + 2X)) = 0
((8 * -3 + 2X * -3) + X(8 + 2X)) = 0
((-24 + -6X) + X(8 + 2X)) = 0
(-24 + -6X + (8 * X + 2X * X)) = 0
(-24 + -6X + (8X + 2X2)) = 0

Combine like terms: -6X + 8X = 2X
(-24 + 2X + 2X2) = 0

Solving
-24 + 2X + 2X2 = 0

Solving for variable 'X'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-12 + X + X2) = 0

Factor a trinomial.
2((-4 + -1X)(3 + -1X)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-4 + -1X)' equal to zero and attempt to solve: Simplifying -4 + -1X = 0 Solving -4 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + -1X = 0 + 4 Combine like terms: -4 + 4 = 0 0 + -1X = 0 + 4 -1X = 0 + 4 Combine like terms: 0 + 4 = 4 -1X = 4 Divide each side by '-1'. X = -4 Simplifying X = -4

Subproblem 2

Set the factor '(3 + -1X)' equal to zero and attempt to solve: Simplifying 3 + -1X = 0 Solving 3 + -1X = 0 Move all terms containing X to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1X = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1X = 0 + -3 -1X = 0 + -3 Combine like terms: 0 + -3 = -3 -1X = -3 Divide each side by '-1'. X = 3 Simplifying X = 3

Solution

X = {-4, 3}

See similar equations:

| 5(p-2)=0 | | 324=45x-x^2 | | x+8=5y | | 5a(7a-3)=35 | | 3x+5=-20-10x | | log(x^2-1)=0 | | y=2x-12x+10 | | 4=-2x-20 | | x^2-3*x+2=0 | | (A/10^n)=0.3002 | | (A/10^n) | | 4(z+2/3)=16/4 | | 26=7y+2 | | 2x-8+4x+6=2x+2 | | F(n)=1.25n+6.25 | | 7x-80+50x-16x=36x-9+20-2x | | 4x-4x+32=5x-4+4x | | 0,7x+3,5-1,5+0,3x=0 | | 0,7+3,5-1,5+0,3=0 | | (A*1/10^n)=0.3002 | | 43-27=9 | | (3*1/10^m) | | (3x1/10^m) | | (3x1/10m) | | 2(a+7)=a+7 | | 3(x-5)+6=50 | | 10x-7=215-42x | | 6h^2+32h=88 | | 6x^2+32h=88 | | -2(x-6)=x-9 | | -x-2-3x+4=x-10+7x-28-2x | | 4x+3x+6=41 |

Equations solver categories