(-12x^2+6x)-(5x^2+7x-1)=

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Solution for (-12x^2+6x)-(5x^2+7x-1)= equation:


Simplifying
(-12x2 + 6x) + -1(5x2 + 7x + -1) = 0

Reorder the terms:
(6x + -12x2) + -1(5x2 + 7x + -1) = 0

Remove parenthesis around (6x + -12x2)
6x + -12x2 + -1(5x2 + 7x + -1) = 0

Reorder the terms:
6x + -12x2 + -1(-1 + 7x + 5x2) = 0
6x + -12x2 + (-1 * -1 + 7x * -1 + 5x2 * -1) = 0
6x + -12x2 + (1 + -7x + -5x2) = 0

Reorder the terms:
1 + 6x + -7x + -12x2 + -5x2 = 0

Combine like terms: 6x + -7x = -1x
1 + -1x + -12x2 + -5x2 = 0

Combine like terms: -12x2 + -5x2 = -17x2
1 + -1x + -17x2 = 0

Solving
1 + -1x + -17x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-17 the coefficient of the squared term: 

Divide each side by '-17'.
-0.05882352941 + 0.05882352941x + x2 = 0

Move the constant term to the right:

Add '0.05882352941' to each side of the equation.
-0.05882352941 + 0.05882352941x + 0.05882352941 + x2 = 0 + 0.05882352941

Reorder the terms:
-0.05882352941 + 0.05882352941 + 0.05882352941x + x2 = 0 + 0.05882352941

Combine like terms: -0.05882352941 + 0.05882352941 = 0.00000000000
0.00000000000 + 0.05882352941x + x2 = 0 + 0.05882352941
0.05882352941x + x2 = 0 + 0.05882352941

Combine like terms: 0 + 0.05882352941 = 0.05882352941
0.05882352941x + x2 = 0.05882352941

The x term is 0.05882352941x.  Take half its coefficient (0.02941176471).
Square it (0.0008650519034) and add it to both sides.

Add '0.0008650519034' to each side of the equation.
0.05882352941x + 0.0008650519034 + x2 = 0.05882352941 + 0.0008650519034

Reorder the terms:
0.0008650519034 + 0.05882352941x + x2 = 0.05882352941 + 0.0008650519034

Combine like terms: 0.05882352941 + 0.0008650519034 = 0.0596885813134
0.0008650519034 + 0.05882352941x + x2 = 0.0596885813134

Factor a perfect square on the left side:
(x + 0.02941176471)(x + 0.02941176471) = 0.0596885813134

Calculate the square root of the right side: 0.244312467

Break this problem into two subproblems by setting 
(x + 0.02941176471) equal to 0.244312467 and -0.244312467.

Subproblem 1

x + 0.02941176471 = 0.244312467 Simplifying x + 0.02941176471 = 0.244312467 Reorder the terms: 0.02941176471 + x = 0.244312467 Solving 0.02941176471 + x = 0.244312467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02941176471' to each side of the equation. 0.02941176471 + -0.02941176471 + x = 0.244312467 + -0.02941176471 Combine like terms: 0.02941176471 + -0.02941176471 = 0.00000000000 0.00000000000 + x = 0.244312467 + -0.02941176471 x = 0.244312467 + -0.02941176471 Combine like terms: 0.244312467 + -0.02941176471 = 0.21490070229 x = 0.21490070229 Simplifying x = 0.21490070229

Subproblem 2

x + 0.02941176471 = -0.244312467 Simplifying x + 0.02941176471 = -0.244312467 Reorder the terms: 0.02941176471 + x = -0.244312467 Solving 0.02941176471 + x = -0.244312467 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.02941176471' to each side of the equation. 0.02941176471 + -0.02941176471 + x = -0.244312467 + -0.02941176471 Combine like terms: 0.02941176471 + -0.02941176471 = 0.00000000000 0.00000000000 + x = -0.244312467 + -0.02941176471 x = -0.244312467 + -0.02941176471 Combine like terms: -0.244312467 + -0.02941176471 = -0.27372423171 x = -0.27372423171 Simplifying x = -0.27372423171

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.21490070229, -0.27372423171}

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