5x(x-1)=68-2x-2x

Simple and best practice solution for 5x(x-1)=68-2x-2x 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 5x(x-1)=68-2x-2x equation:


Simplifying
5x(x + -1) = 68 + -2x + -2x

Reorder the terms:
5x(-1 + x) = 68 + -2x + -2x
(-1 * 5x + x * 5x) = 68 + -2x + -2x
(-5x + 5x2) = 68 + -2x + -2x

Combine like terms: -2x + -2x = -4x
-5x + 5x2 = 68 + -4x

Solving
-5x + 5x2 = 68 + -4x

Solving for variable 'x'.

Reorder the terms:
-68 + -5x + 4x + 5x2 = 68 + -4x + -68 + 4x

Combine like terms: -5x + 4x = -1x
-68 + -1x + 5x2 = 68 + -4x + -68 + 4x

Reorder the terms:
-68 + -1x + 5x2 = 68 + -68 + -4x + 4x

Combine like terms: 68 + -68 = 0
-68 + -1x + 5x2 = 0 + -4x + 4x
-68 + -1x + 5x2 = -4x + 4x

Combine like terms: -4x + 4x = 0
-68 + -1x + 5x2 = 0

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

Divide each side by '5'.
-13.6 + -0.2x + x2 = 0

Move the constant term to the right:

Add '13.6' to each side of the equation.
-13.6 + -0.2x + 13.6 + x2 = 0 + 13.6

Reorder the terms:
-13.6 + 13.6 + -0.2x + x2 = 0 + 13.6

Combine like terms: -13.6 + 13.6 = 0.0
0.0 + -0.2x + x2 = 0 + 13.6
-0.2x + x2 = 0 + 13.6

Combine like terms: 0 + 13.6 = 13.6
-0.2x + x2 = 13.6

The x term is -0.2x.  Take half its coefficient (-0.1).
Square it (0.01) and add it to both sides.

Add '0.01' to each side of the equation.
-0.2x + 0.01 + x2 = 13.6 + 0.01

Reorder the terms:
0.01 + -0.2x + x2 = 13.6 + 0.01

Combine like terms: 13.6 + 0.01 = 13.61
0.01 + -0.2x + x2 = 13.61

Factor a perfect square on the left side:
(x + -0.1)(x + -0.1) = 13.61

Calculate the square root of the right side: 3.689173349

Break this problem into two subproblems by setting 
(x + -0.1) equal to 3.689173349 and -3.689173349.

Subproblem 1

x + -0.1 = 3.689173349 Simplifying x + -0.1 = 3.689173349 Reorder the terms: -0.1 + x = 3.689173349 Solving -0.1 + x = 3.689173349 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + x = 3.689173349 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + x = 3.689173349 + 0.1 x = 3.689173349 + 0.1 Combine like terms: 3.689173349 + 0.1 = 3.789173349 x = 3.789173349 Simplifying x = 3.789173349

Subproblem 2

x + -0.1 = -3.689173349 Simplifying x + -0.1 = -3.689173349 Reorder the terms: -0.1 + x = -3.689173349 Solving -0.1 + x = -3.689173349 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.1' to each side of the equation. -0.1 + 0.1 + x = -3.689173349 + 0.1 Combine like terms: -0.1 + 0.1 = 0.0 0.0 + x = -3.689173349 + 0.1 x = -3.689173349 + 0.1 Combine like terms: -3.689173349 + 0.1 = -3.589173349 x = -3.589173349 Simplifying x = -3.589173349

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.789173349, -3.589173349}

See similar equations:

| -3x-24=-9x-6 | | 15x+19=4x+13+8x | | -8x+42=6x | | 8x-8+14+6x=5x+50 | | 280/6 | | 24/12X=12 | | 8(2y+5)=(2y+14) | | 2x+4y=73 | | 7=5-1/3m | | 3x-33=15x+5-10x | | 3(3x)+2(5)=60x-5x | | 9x+64=5x+4 | | 6y^4+9y^8= | | 5m/q=f/d | | h(x)=-5x^2+4 | | X^8+6x^4y^4+9y^8-25z^16= | | 0.4(x+7)=0.6-4.2 | | X-8.4=-3.4 | | X-60=-7x+4 | | -5*-5=0 | | y=5/3x-7/10 | | 6+b=9 | | =0.5n-8 | | 7(x-3)=4x+3 | | 3b^2-b=5 | | 4x+12x-4=4(4x+6) | | -2/5t=9/10 | | Sinex=0.31 | | 2/5t=9/10 | | -4n=6(6n) | | 0.5m+40=.10(m-100)+35 | | -2t/5=9/10 |

Equations solver categories