(3-2x)(3+2x)+10x=1-x

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Solution for (3-2x)(3+2x)+10x=1-x equation:


Simplifying
(3 + -2x)(3 + 2x) + 10x = 1 + -1x

Multiply (3 + -2x) * (3 + 2x)
(3(3 + 2x) + -2x * (3 + 2x)) + 10x = 1 + -1x
((3 * 3 + 2x * 3) + -2x * (3 + 2x)) + 10x = 1 + -1x
((9 + 6x) + -2x * (3 + 2x)) + 10x = 1 + -1x
(9 + 6x + (3 * -2x + 2x * -2x)) + 10x = 1 + -1x
(9 + 6x + (-6x + -4x2)) + 10x = 1 + -1x

Combine like terms: 6x + -6x = 0
(9 + 0 + -4x2) + 10x = 1 + -1x
(9 + -4x2) + 10x = 1 + -1x

Reorder the terms:
9 + 10x + -4x2 = 1 + -1x

Solving
9 + 10x + -4x2 = 1 + -1x

Solving for variable 'x'.

Reorder the terms:
9 + -1 + 10x + x + -4x2 = 1 + -1x + -1 + x

Combine like terms: 9 + -1 = 8
8 + 10x + x + -4x2 = 1 + -1x + -1 + x

Combine like terms: 10x + x = 11x
8 + 11x + -4x2 = 1 + -1x + -1 + x

Reorder the terms:
8 + 11x + -4x2 = 1 + -1 + -1x + x

Combine like terms: 1 + -1 = 0
8 + 11x + -4x2 = 0 + -1x + x
8 + 11x + -4x2 = -1x + x

Combine like terms: -1x + x = 0
8 + 11x + -4x2 = 0

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-2 + -2.75x + x2 = 0

Move the constant term to the right:

Add '2' to each side of the equation.
-2 + -2.75x + 2 + x2 = 0 + 2

Reorder the terms:
-2 + 2 + -2.75x + x2 = 0 + 2

Combine like terms: -2 + 2 = 0
0 + -2.75x + x2 = 0 + 2
-2.75x + x2 = 0 + 2

Combine like terms: 0 + 2 = 2
-2.75x + x2 = 2

The x term is -2.75x.  Take half its coefficient (-1.375).
Square it (1.890625) and add it to both sides.

Add '1.890625' to each side of the equation.
-2.75x + 1.890625 + x2 = 2 + 1.890625

Reorder the terms:
1.890625 + -2.75x + x2 = 2 + 1.890625

Combine like terms: 2 + 1.890625 = 3.890625
1.890625 + -2.75x + x2 = 3.890625

Factor a perfect square on the left side:
(x + -1.375)(x + -1.375) = 3.890625

Calculate the square root of the right side: 1.97246673

Break this problem into two subproblems by setting 
(x + -1.375) equal to 1.97246673 and -1.97246673.

Subproblem 1

x + -1.375 = 1.97246673 Simplifying x + -1.375 = 1.97246673 Reorder the terms: -1.375 + x = 1.97246673 Solving -1.375 + x = 1.97246673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = 1.97246673 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = 1.97246673 + 1.375 x = 1.97246673 + 1.375 Combine like terms: 1.97246673 + 1.375 = 3.34746673 x = 3.34746673 Simplifying x = 3.34746673

Subproblem 2

x + -1.375 = -1.97246673 Simplifying x + -1.375 = -1.97246673 Reorder the terms: -1.375 + x = -1.97246673 Solving -1.375 + x = -1.97246673 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.375' to each side of the equation. -1.375 + 1.375 + x = -1.97246673 + 1.375 Combine like terms: -1.375 + 1.375 = 0.000 0.000 + x = -1.97246673 + 1.375 x = -1.97246673 + 1.375 Combine like terms: -1.97246673 + 1.375 = -0.59746673 x = -0.59746673 Simplifying x = -0.59746673

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.34746673, -0.59746673}

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