x(12+2x)=63

Simple and best practice solution for x(12+2x)=63 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(12+2x)=63 equation:


Simplifying
x(12 + 2x) = 63
(12 * x + 2x * x) = 63
(12x + 2x2) = 63

Solving
12x + 2x2 = 63

Solving for variable 'x'.

Reorder the terms:
-63 + 12x + 2x2 = 63 + -63

Combine like terms: 63 + -63 = 0
-63 + 12x + 2x2 = 0

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

Divide each side by '2'.
-31.5 + 6x + x2 = 0

Move the constant term to the right:

Add '31.5' to each side of the equation.
-31.5 + 6x + 31.5 + x2 = 0 + 31.5

Reorder the terms:
-31.5 + 31.5 + 6x + x2 = 0 + 31.5

Combine like terms: -31.5 + 31.5 = 0.0
0.0 + 6x + x2 = 0 + 31.5
6x + x2 = 0 + 31.5

Combine like terms: 0 + 31.5 = 31.5
6x + x2 = 31.5

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 31.5 + 9

Reorder the terms:
9 + 6x + x2 = 31.5 + 9

Combine like terms: 31.5 + 9 = 40.5
9 + 6x + x2 = 40.5

Factor a perfect square on the left side:
(x + 3)(x + 3) = 40.5

Calculate the square root of the right side: 6.363961031

Break this problem into two subproblems by setting 
(x + 3) equal to 6.363961031 and -6.363961031.

Subproblem 1

x + 3 = 6.363961031 Simplifying x + 3 = 6.363961031 Reorder the terms: 3 + x = 6.363961031 Solving 3 + x = 6.363961031 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 6.363961031 + -3 Combine like terms: 3 + -3 = 0 0 + x = 6.363961031 + -3 x = 6.363961031 + -3 Combine like terms: 6.363961031 + -3 = 3.363961031 x = 3.363961031 Simplifying x = 3.363961031

Subproblem 2

x + 3 = -6.363961031 Simplifying x + 3 = -6.363961031 Reorder the terms: 3 + x = -6.363961031 Solving 3 + x = -6.363961031 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -6.363961031 + -3 Combine like terms: 3 + -3 = 0 0 + x = -6.363961031 + -3 x = -6.363961031 + -3 Combine like terms: -6.363961031 + -3 = -9.363961031 x = -9.363961031 Simplifying x = -9.363961031

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.363961031, -9.363961031}

See similar equations:

| ((5p-4)/(p^2-3p-70))-((3)/(p-10)) | | -2y+3+2y=0 | | 4x+20-5+x=10 | | 5x+12=6x+9 | | 3x-6(2x+1)-x=4x+9-5x+1 | | 3x-6(2x+1)-x=4x+99-5x+1 | | -7-(-8)=1 | | 10(x^2)+10+29x=0 | | -15p-1+24+2(5+5p)=0 | | 12.08=25-0.02s | | -168c+224=4c+28+c | | Sinx=.8 | | 19x+4=82 | | 7n^2-41n+30=0 | | x^2+3ix-9=0 | | 9x+8=5x-3 | | -3(1/4)^-3 | | 3x+8x=2x+58 | | 7x(5-6)=4x-19 | | 3x+17=6x+16 | | 2x^2/3=32 | | 3n-5=(8n+7) | | 3p^2+10p+16=0 | | x^2+2x+9y^2-28=0 | | x-2+5x=40 | | -4p-3=2-p | | 14n^2+55n+21=0 | | 4x+4-6x=-2 | | 1/3x24/9 | | -6n+4=0 | | 7v^2-21v=0 | | (X/3)=15 |

Equations solver categories