x^2+4x=132

Simple and best practice solution for x^2+4x=132 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+4x=132 equation:


Simplifying
x2 + 4x = 132

Reorder the terms:
4x + x2 = 132

Solving
4x + x2 = 132

Solving for variable 'x'.

Reorder the terms:
-132 + 4x + x2 = 132 + -132

Combine like terms: 132 + -132 = 0
-132 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '132' to each side of the equation.
-132 + 4x + 132 + x2 = 0 + 132

Reorder the terms:
-132 + 132 + 4x + x2 = 0 + 132

Combine like terms: -132 + 132 = 0
0 + 4x + x2 = 0 + 132
4x + x2 = 0 + 132

Combine like terms: 0 + 132 = 132
4x + x2 = 132

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 132 + 4

Reorder the terms:
4 + 4x + x2 = 132 + 4

Combine like terms: 132 + 4 = 136
4 + 4x + x2 = 136

Factor a perfect square on the left side:
(x + 2)(x + 2) = 136

Calculate the square root of the right side: 11.66190379

Break this problem into two subproblems by setting 
(x + 2) equal to 11.66190379 and -11.66190379.

Subproblem 1

x + 2 = 11.66190379 Simplifying x + 2 = 11.66190379 Reorder the terms: 2 + x = 11.66190379 Solving 2 + x = 11.66190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 11.66190379 + -2 Combine like terms: 2 + -2 = 0 0 + x = 11.66190379 + -2 x = 11.66190379 + -2 Combine like terms: 11.66190379 + -2 = 9.66190379 x = 9.66190379 Simplifying x = 9.66190379

Subproblem 2

x + 2 = -11.66190379 Simplifying x + 2 = -11.66190379 Reorder the terms: 2 + x = -11.66190379 Solving 2 + x = -11.66190379 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -11.66190379 + -2 Combine like terms: 2 + -2 = 0 0 + x = -11.66190379 + -2 x = -11.66190379 + -2 Combine like terms: -11.66190379 + -2 = -13.66190379 x = -13.66190379 Simplifying x = -13.66190379

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.66190379, -13.66190379}

See similar equations:

| 18-27= | | 15-2x=4x-21 | | f(x)=x^3-3x^2-4x+12-2 | | 0.99*x=1.5*x | | x^3-3x^2-4x+12-2=0 | | 14+5h=20 | | 75*x=25*x | | x^3+7x^2-15x-9=0 | | 5x+3x-6=90 | | 75+15*x=0+25 | | 500=515+b(85-79) | | 20=I^2(5) | | 20=I^25 | | 1.33(-6y)= | | 4(n+7)-14n=148 | | 5x+6=2x+14 | | (x-yi)(3+2i)=12-5i | | (fg)(-12)=0 | | x^2+y^2=5(x-y) | | 6y+(5y+2)= | | 6y+30x=180 | | r^2-6r=187 | | -210=10(2p-3) | | (a-b)8= | | r^2-4r=192 | | 6y(5y+2)= | | 6t+6t=48 | | x^4+2x^3-13x^2+10x+40=0 | | 0.99+25*x=1.5*x | | 7(x+4)-3(x+1)=4(x-2) | | X+26=49 | | P-27=-9 |

Equations solver categories