x(x+5)=144

Simple and best practice solution for x(x+5)=144 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+5)=144 equation:


Simplifying
x(x + 5) = 144

Reorder the terms:
x(5 + x) = 144
(5 * x + x * x) = 144
(5x + x2) = 144

Solving
5x + x2 = 144

Solving for variable 'x'.

Reorder the terms:
-144 + 5x + x2 = 144 + -144

Combine like terms: 144 + -144 = 0
-144 + 5x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '144' to each side of the equation.
-144 + 5x + 144 + x2 = 0 + 144

Reorder the terms:
-144 + 144 + 5x + x2 = 0 + 144

Combine like terms: -144 + 144 = 0
0 + 5x + x2 = 0 + 144
5x + x2 = 0 + 144

Combine like terms: 0 + 144 = 144
5x + x2 = 144

The x term is 5x.  Take half its coefficient (2.5).
Square it (6.25) and add it to both sides.

Add '6.25' to each side of the equation.
5x + 6.25 + x2 = 144 + 6.25

Reorder the terms:
6.25 + 5x + x2 = 144 + 6.25

Combine like terms: 144 + 6.25 = 150.25
6.25 + 5x + x2 = 150.25

Factor a perfect square on the left side:
(x + 2.5)(x + 2.5) = 150.25

Calculate the square root of the right side: 12.257650672

Break this problem into two subproblems by setting 
(x + 2.5) equal to 12.257650672 and -12.257650672.

Subproblem 1

x + 2.5 = 12.257650672 Simplifying x + 2.5 = 12.257650672 Reorder the terms: 2.5 + x = 12.257650672 Solving 2.5 + x = 12.257650672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 12.257650672 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 12.257650672 + -2.5 x = 12.257650672 + -2.5 Combine like terms: 12.257650672 + -2.5 = 9.757650672 x = 9.757650672 Simplifying x = 9.757650672

Subproblem 2

x + 2.5 = -12.257650672 Simplifying x + 2.5 = -12.257650672 Reorder the terms: 2.5 + x = -12.257650672 Solving 2.5 + x = -12.257650672 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -12.257650672 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -12.257650672 + -2.5 x = -12.257650672 + -2.5 Combine like terms: -12.257650672 + -2.5 = -14.757650672 x = -14.757650672 Simplifying x = -14.757650672

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.757650672, -14.757650672}

See similar equations:

| 3-x=10+2x | | 2p-5=-7 | | 8(4u-1)-12u=18-3(16-3d) | | R^2-15=-8r-10 | | -1z/3-7 | | 4X+1/3=11 | | 25+11x=36 | | (75+81+n)/3=80 | | (7-w)(3w+2)=0 | | 12p^2-2p-13=0 | | 15/k=5 | | 3/(75+81+n)=80 | | -3y+2y+6=-2y+5-3y+16 | | 36x*36x-25=0 | | 2.4+16.4q=4(4.3q+1) | | 45+y=8*v | | 8(6f+9c-9p)= | | 5y-4m=19 | | 6/w+3-5=2w-2/w+3 | | 19-y=9c | | 4/7z+2/3z=13 | | -5+5x=12x+5 | | -7y*-9y= | | 22+3(a+6)=4(3a+5) | | 108x5/12 | | -9x^3+24x^10=equation | | 3(4+4g)=12g+12 | | (-9)+7= | | X/2=7/10 | | 5(-9a+8b)-8(-6a+3b)-2=X | | y^2+4y^1+6xy=0 | | f(x)=10x+1+x(-9x+3) |

Equations solver categories