x(x+4)=159

Simple and best practice solution for x(x+4)=159 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(x+4)=159 equation:


Simplifying
x(x + 4) = 159

Reorder the terms:
x(4 + x) = 159
(4 * x + x * x) = 159
(4x + x2) = 159

Solving
4x + x2 = 159

Solving for variable 'x'.

Reorder the terms:
-159 + 4x + x2 = 159 + -159

Combine like terms: 159 + -159 = 0
-159 + 4x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '159' to each side of the equation.
-159 + 4x + 159 + x2 = 0 + 159

Reorder the terms:
-159 + 159 + 4x + x2 = 0 + 159

Combine like terms: -159 + 159 = 0
0 + 4x + x2 = 0 + 159
4x + x2 = 0 + 159

Combine like terms: 0 + 159 = 159
4x + x2 = 159

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 = 159 + 4

Reorder the terms:
4 + 4x + x2 = 159 + 4

Combine like terms: 159 + 4 = 163
4 + 4x + x2 = 163

Factor a perfect square on the left side:
(x + 2)(x + 2) = 163

Calculate the square root of the right side: 12.767145335

Break this problem into two subproblems by setting 
(x + 2) equal to 12.767145335 and -12.767145335.

Subproblem 1

x + 2 = 12.767145335 Simplifying x + 2 = 12.767145335 Reorder the terms: 2 + x = 12.767145335 Solving 2 + x = 12.767145335 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 = 12.767145335 + -2 Combine like terms: 2 + -2 = 0 0 + x = 12.767145335 + -2 x = 12.767145335 + -2 Combine like terms: 12.767145335 + -2 = 10.767145335 x = 10.767145335 Simplifying x = 10.767145335

Subproblem 2

x + 2 = -12.767145335 Simplifying x + 2 = -12.767145335 Reorder the terms: 2 + x = -12.767145335 Solving 2 + x = -12.767145335 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 = -12.767145335 + -2 Combine like terms: 2 + -2 = 0 0 + x = -12.767145335 + -2 x = -12.767145335 + -2 Combine like terms: -12.767145335 + -2 = -14.767145335 x = -14.767145335 Simplifying x = -14.767145335

Solution

The solution to the problem is based on the solutions from the subproblems. x = {10.767145335, -14.767145335}

See similar equations:

| 256x=8 | | 5+8lnx=77 | | 2(10x+5)=64 | | 1=2j-1 | | 5x+139=14x-14 | | 17(t-3)+4t=7(3t+4)-9 | | 3q-3=3 | | -6.8(2s+4)-1.5(4s-6)= | | 25y^3-4=0 | | 2(6+-4)+T=48-t | | 3x+6y=80 | | 2/3x() | | x^2+6x+28= | | 8x^6-48x^5= | | 0.05x+10=0.10x+5.30 | | 30/65 | | 0.05x+10=0.10+5.30 | | (3/4)t^(-1/4)-(1/2)t^(-3/4)=0 | | 5[7-5(3m+1)]-2m= | | 0.10x=0.05x+10 | | -6-15=-3(a-7) | | 2a^2-3a+6=0 | | 2x+5-2=-9 | | 6x^2+54x+84=0 | | 3(x-5)=13-x | | p-11/30=7/30 | | 5=x-7+5 | | .9x-.6=1.8+.3x | | x^256+2x^16+1=0 | | x^2+6c-27=0 | | 4/2(56)=5 | | 15=x-5+4x |

Equations solver categories