158-4x=x^2-5x

Simple and best practice solution for 158-4x=x^2-5x 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 158-4x=x^2-5x equation:


Simplifying
158 + -4x = x2 + -5x

Reorder the terms:
158 + -4x = -5x + x2

Solving
158 + -4x = -5x + x2

Solving for variable 'x'.

Combine like terms: -4x + 5x = 1x
158 + 1x + -1x2 = -5x + x2 + 5x + -1x2

Reorder the terms:
158 + 1x + -1x2 = -5x + 5x + x2 + -1x2

Combine like terms: -5x + 5x = 0
158 + 1x + -1x2 = 0 + x2 + -1x2
158 + 1x + -1x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
158 + 1x + -1x2 = 0

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
-158 + -1x + x2 = 0

Move the constant term to the right:

Add '158' to each side of the equation.
-158 + -1x + 158 + x2 = 0 + 158

Reorder the terms:
-158 + 158 + -1x + x2 = 0 + 158

Combine like terms: -158 + 158 = 0
0 + -1x + x2 = 0 + 158
-1x + x2 = 0 + 158

Combine like terms: 0 + 158 = 158
-1x + x2 = 158

The x term is -1x.  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.
-1x + 0.25 + x2 = 158 + 0.25

Reorder the terms:
0.25 + -1x + x2 = 158 + 0.25

Combine like terms: 158 + 0.25 = 158.25
0.25 + -1x + x2 = 158.25

Factor a perfect square on the left side:
(x + -0.5)(x + -0.5) = 158.25

Calculate the square root of the right side: 12.579745625

Break this problem into two subproblems by setting 
(x + -0.5) equal to 12.579745625 and -12.579745625.

Subproblem 1

x + -0.5 = 12.579745625 Simplifying x + -0.5 = 12.579745625 Reorder the terms: -0.5 + x = 12.579745625 Solving -0.5 + x = 12.579745625 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 = 12.579745625 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 12.579745625 + 0.5 x = 12.579745625 + 0.5 Combine like terms: 12.579745625 + 0.5 = 13.079745625 x = 13.079745625 Simplifying x = 13.079745625

Subproblem 2

x + -0.5 = -12.579745625 Simplifying x + -0.5 = -12.579745625 Reorder the terms: -0.5 + x = -12.579745625 Solving -0.5 + x = -12.579745625 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 = -12.579745625 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -12.579745625 + 0.5 x = -12.579745625 + 0.5 Combine like terms: -12.579745625 + 0.5 = -12.079745625 x = -12.079745625 Simplifying x = -12.079745625

Solution

The solution to the problem is based on the solutions from the subproblems. x = {13.079745625, -12.079745625}

See similar equations:

| 63=4a+3(a+2)+1 | | 5x*15=90 | | 6n-37=6(n-6)-1 | | 8n^2-63n-8=0 | | -3=6x+6-5x | | 5x+3=6-2 | | -6-6n+3+4n=-(-1+6n)+5(-8n+8) | | 3x+4(5+x)=16 | | (2r+4)*4=3*(3r-9) | | .06(x-5)=.04(x+8) | | 2x^2-16x+34=x^2-6x+10 | | 4x-5=7x-6 | | u^2+2u-80=0 | | 5x+13x+42=24 | | 72-14x=16x | | 2x+8-x+4-x-2= | | 11+3(a+3)=41 | | 2(x+6)-(x-4)=3(x+2)+1/2(2x+4) | | 4-x/2=5 | | 3(-4p+6)=2(-5p-7)-p | | 9/10x5/11 | | 71=7(m+1)+m | | 3(-4p+6)=2(-5-7)p | | y+.18x=60 | | 5(x+2)+8=58 | | 4a-16=36 | | f(-4)=x^2-7x | | J=b/(z-a) | | .33(x-2)=.2(x+4)+2 | | 16+4x+4x=8 | | 6x+36=13x-45 | | t/4-9=6 |

Equations solver categories