8x^2-6x=7x^2+6x-2

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Solution for 8x^2-6x=7x^2+6x-2 equation:


Simplifying
8x2 + -6x = 7x2 + 6x + -2

Reorder the terms:
-6x + 8x2 = 7x2 + 6x + -2

Reorder the terms:
-6x + 8x2 = -2 + 6x + 7x2

Solving
-6x + 8x2 = -2 + 6x + 7x2

Solving for variable 'x'.

Reorder the terms:
2 + -6x + -6x + 8x2 + -7x2 = -2 + 6x + 7x2 + 2 + -6x + -7x2

Combine like terms: -6x + -6x = -12x
2 + -12x + 8x2 + -7x2 = -2 + 6x + 7x2 + 2 + -6x + -7x2

Combine like terms: 8x2 + -7x2 = 1x2
2 + -12x + 1x2 = -2 + 6x + 7x2 + 2 + -6x + -7x2

Reorder the terms:
2 + -12x + 1x2 = -2 + 2 + 6x + -6x + 7x2 + -7x2

Combine like terms: -2 + 2 = 0
2 + -12x + 1x2 = 0 + 6x + -6x + 7x2 + -7x2
2 + -12x + 1x2 = 6x + -6x + 7x2 + -7x2

Combine like terms: 6x + -6x = 0
2 + -12x + 1x2 = 0 + 7x2 + -7x2
2 + -12x + 1x2 = 7x2 + -7x2

Combine like terms: 7x2 + -7x2 = 0
2 + -12x + 1x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + -12x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + -12x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + -12x + x2 = 0 + -2
-12x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
-12x + x2 = -2

The x term is -12x.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12x + 36 + x2 = -2 + 36

Reorder the terms:
36 + -12x + x2 = -2 + 36

Combine like terms: -2 + 36 = 34
36 + -12x + x2 = 34

Factor a perfect square on the left side:
(x + -6)(x + -6) = 34

Calculate the square root of the right side: 5.830951895

Break this problem into two subproblems by setting 
(x + -6) equal to 5.830951895 and -5.830951895.

Subproblem 1

x + -6 = 5.830951895 Simplifying x + -6 = 5.830951895 Reorder the terms: -6 + x = 5.830951895 Solving -6 + x = 5.830951895 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = 5.830951895 + 6 Combine like terms: -6 + 6 = 0 0 + x = 5.830951895 + 6 x = 5.830951895 + 6 Combine like terms: 5.830951895 + 6 = 11.830951895 x = 11.830951895 Simplifying x = 11.830951895

Subproblem 2

x + -6 = -5.830951895 Simplifying x + -6 = -5.830951895 Reorder the terms: -6 + x = -5.830951895 Solving -6 + x = -5.830951895 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + x = -5.830951895 + 6 Combine like terms: -6 + 6 = 0 0 + x = -5.830951895 + 6 x = -5.830951895 + 6 Combine like terms: -5.830951895 + 6 = 0.169048105 x = 0.169048105 Simplifying x = 0.169048105

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.830951895, 0.169048105}

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