x=2(x+10)(3x-30)

Simple and best practice solution for x=2(x+10)(3x-30) 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=2(x+10)(3x-30) equation:


Simplifying
x = 2(x + 10)(3x + -30)

Reorder the terms:
x = 2(10 + x)(3x + -30)

Reorder the terms:
x = 2(10 + x)(-30 + 3x)

Multiply (10 + x) * (-30 + 3x)
x = 2(10(-30 + 3x) + x(-30 + 3x))
x = 2((-30 * 10 + 3x * 10) + x(-30 + 3x))
x = 2((-300 + 30x) + x(-30 + 3x))
x = 2(-300 + 30x + (-30 * x + 3x * x))
x = 2(-300 + 30x + (-30x + 3x2))

Combine like terms: 30x + -30x = 0
x = 2(-300 + 0 + 3x2)
x = 2(-300 + 3x2)
x = (-300 * 2 + 3x2 * 2)
x = (-600 + 6x2)

Solving
x = -600 + 6x2

Solving for variable 'x'.

Reorder the terms:
600 + x + -6x2 = -600 + 6x2 + 600 + -6x2

Reorder the terms:
600 + x + -6x2 = -600 + 600 + 6x2 + -6x2

Combine like terms: -600 + 600 = 0
600 + x + -6x2 = 0 + 6x2 + -6x2
600 + x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
600 + x + -6x2 = 0

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
-100 + -0.1666666667x + x2 = 0

Move the constant term to the right:

Add '100' to each side of the equation.
-100 + -0.1666666667x + 100 + x2 = 0 + 100

Reorder the terms:
-100 + 100 + -0.1666666667x + x2 = 0 + 100

Combine like terms: -100 + 100 = 0
0 + -0.1666666667x + x2 = 0 + 100
-0.1666666667x + x2 = 0 + 100

Combine like terms: 0 + 100 = 100
-0.1666666667x + x2 = 100

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
-0.1666666667x + 0.25 + x2 = 100 + 0.25

Reorder the terms:
0.25 + -0.1666666667x + x2 = 100 + 0.25

Combine like terms: 100 + 0.25 = 100.25
0.25 + -0.1666666667x + x2 = 100.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 100.25

Calculate the square root of the right side: 10.012492197

Break this problem into two subproblems by setting 
(x + 0.5) equal to 10.012492197 and -10.012492197.

Subproblem 1

x + 0.5 = 10.012492197 Simplifying x + 0.5 = 10.012492197 Reorder the terms: 0.5 + x = 10.012492197 Solving 0.5 + x = 10.012492197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 10.012492197 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 10.012492197 + -0.5 x = 10.012492197 + -0.5 Combine like terms: 10.012492197 + -0.5 = 9.512492197 x = 9.512492197 Simplifying x = 9.512492197

Subproblem 2

x + 0.5 = -10.012492197 Simplifying x + 0.5 = -10.012492197 Reorder the terms: 0.5 + x = -10.012492197 Solving 0.5 + x = -10.012492197 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -10.012492197 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -10.012492197 + -0.5 x = -10.012492197 + -0.5 Combine like terms: -10.012492197 + -0.5 = -10.512492197 x = -10.512492197 Simplifying x = -10.512492197

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.512492197, -10.512492197}

See similar equations:

| (x-14)-5=-105 | | 36x^2+180x+225=0 | | 2.5x+10=5x+35 | | Xsquare+12x+27=0 | | 3q+13=-10q+13+13q | | (x^2+30x)+(y^2-32y)+478=0 | | S-q=s+Jc | | -5y+2(y-2)=5 | | 1.3x+3.1=12.2 | | 6-2x=-6x+10 | | 2(y-8)-4y=-20 | | 153.846153846= | | 3x+9=-7-5x | | x^2+y^2+30x-32y+478=0 | | -8u+2(u+7)=-10 | | -30=-8w+6(w-7) | | 11/5y=12 | | 2x-5(x-5)=-2+4x+13 | | 2x+3+2x+3=6x-7 | | 28=-y/8 | | 4x^2*2x+x-x= | | -3+4=-19 | | 3k-8=32 | | 6m=20+2m | | 4(x+7)-7=34 | | -(6x+6y+3)= | | 4x+4=14b+15 | | -26=-2v | | 4/7g=24/7 | | 2.9x+1.7=7.5 | | 2LM=2LN-K | | 10m=35+3m |

Equations solver categories