5(2x-1)-(10x^2-6)=-(x+2)

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Solution for 5(2x-1)-(10x^2-6)=-(x+2) equation:


Simplifying
5(2x + -1) + -1(10x2 + -6) = -1(x + 2)

Reorder the terms:
5(-1 + 2x) + -1(10x2 + -6) = -1(x + 2)
(-1 * 5 + 2x * 5) + -1(10x2 + -6) = -1(x + 2)
(-5 + 10x) + -1(10x2 + -6) = -1(x + 2)

Reorder the terms:
-5 + 10x + -1(-6 + 10x2) = -1(x + 2)
-5 + 10x + (-6 * -1 + 10x2 * -1) = -1(x + 2)
-5 + 10x + (6 + -10x2) = -1(x + 2)

Reorder the terms:
-5 + 6 + 10x + -10x2 = -1(x + 2)

Combine like terms: -5 + 6 = 1
1 + 10x + -10x2 = -1(x + 2)

Reorder the terms:
1 + 10x + -10x2 = -1(2 + x)
1 + 10x + -10x2 = (2 * -1 + x * -1)
1 + 10x + -10x2 = (-2 + -1x)

Solving
1 + 10x + -10x2 = -2 + -1x

Solving for variable 'x'.

Reorder the terms:
1 + 2 + 10x + x + -10x2 = -2 + -1x + 2 + x

Combine like terms: 1 + 2 = 3
3 + 10x + x + -10x2 = -2 + -1x + 2 + x

Combine like terms: 10x + x = 11x
3 + 11x + -10x2 = -2 + -1x + 2 + x

Reorder the terms:
3 + 11x + -10x2 = -2 + 2 + -1x + x

Combine like terms: -2 + 2 = 0
3 + 11x + -10x2 = 0 + -1x + x
3 + 11x + -10x2 = -1x + x

Combine like terms: -1x + x = 0
3 + 11x + -10x2 = 0

Begin completing the square.  Divide all terms by
-10 the coefficient of the squared term: 

Divide each side by '-10'.
-0.3 + -1.1x + x2 = 0.0

Move the constant term to the right:

Add '0.3' to each side of the equation.
-0.3 + -1.1x + 0.3 + x2 = 0.0 + 0.3

Reorder the terms:
-0.3 + 0.3 + -1.1x + x2 = 0.0 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + -1.1x + x2 = 0.0 + 0.3
-1.1x + x2 = 0.0 + 0.3

Combine like terms: 0.0 + 0.3 = 0.3
-1.1x + x2 = 0.3

The x term is -1.1x.  Take half its coefficient (-0.55).
Square it (0.3025) and add it to both sides.

Add '0.3025' to each side of the equation.
-1.1x + 0.3025 + x2 = 0.3 + 0.3025

Reorder the terms:
0.3025 + -1.1x + x2 = 0.3 + 0.3025

Combine like terms: 0.3 + 0.3025 = 0.6025
0.3025 + -1.1x + x2 = 0.6025

Factor a perfect square on the left side:
(x + -0.55)(x + -0.55) = 0.6025

Calculate the square root of the right side: 0.776208735

Break this problem into two subproblems by setting 
(x + -0.55) equal to 0.776208735 and -0.776208735.

Subproblem 1

x + -0.55 = 0.776208735 Simplifying x + -0.55 = 0.776208735 Reorder the terms: -0.55 + x = 0.776208735 Solving -0.55 + x = 0.776208735 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.55' to each side of the equation. -0.55 + 0.55 + x = 0.776208735 + 0.55 Combine like terms: -0.55 + 0.55 = 0.00 0.00 + x = 0.776208735 + 0.55 x = 0.776208735 + 0.55 Combine like terms: 0.776208735 + 0.55 = 1.326208735 x = 1.326208735 Simplifying x = 1.326208735

Subproblem 2

x + -0.55 = -0.776208735 Simplifying x + -0.55 = -0.776208735 Reorder the terms: -0.55 + x = -0.776208735 Solving -0.55 + x = -0.776208735 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.55' to each side of the equation. -0.55 + 0.55 + x = -0.776208735 + 0.55 Combine like terms: -0.55 + 0.55 = 0.00 0.00 + x = -0.776208735 + 0.55 x = -0.776208735 + 0.55 Combine like terms: -0.776208735 + 0.55 = -0.226208735 x = -0.226208735 Simplifying x = -0.226208735

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.326208735, -0.226208735}

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