(2x-3)(2x-3)-9x+6=

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Solution for (2x-3)(2x-3)-9x+6= equation:


Simplifying
(2x + -3)(2x + -3) + -9x + 6 = 0

Reorder the terms:
(-3 + 2x)(2x + -3) + -9x + 6 = 0

Reorder the terms:
(-3 + 2x)(-3 + 2x) + -9x + 6 = 0

Multiply (-3 + 2x) * (-3 + 2x)
(-3(-3 + 2x) + 2x * (-3 + 2x)) + -9x + 6 = 0
((-3 * -3 + 2x * -3) + 2x * (-3 + 2x)) + -9x + 6 = 0
((9 + -6x) + 2x * (-3 + 2x)) + -9x + 6 = 0
(9 + -6x + (-3 * 2x + 2x * 2x)) + -9x + 6 = 0
(9 + -6x + (-6x + 4x2)) + -9x + 6 = 0

Combine like terms: -6x + -6x = -12x
(9 + -12x + 4x2) + -9x + 6 = 0

Reorder the terms:
9 + 6 + -12x + -9x + 4x2 = 0

Combine like terms: 9 + 6 = 15
15 + -12x + -9x + 4x2 = 0

Combine like terms: -12x + -9x = -21x
15 + -21x + 4x2 = 0

Solving
15 + -21x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
3.75 + -5.25x + x2 = 0

Move the constant term to the right:

Add '-3.75' to each side of the equation.
3.75 + -5.25x + -3.75 + x2 = 0 + -3.75

Reorder the terms:
3.75 + -3.75 + -5.25x + x2 = 0 + -3.75

Combine like terms: 3.75 + -3.75 = 0.00
0.00 + -5.25x + x2 = 0 + -3.75
-5.25x + x2 = 0 + -3.75

Combine like terms: 0 + -3.75 = -3.75
-5.25x + x2 = -3.75

The x term is -5.25x.  Take half its coefficient (-2.625).
Square it (6.890625) and add it to both sides.

Add '6.890625' to each side of the equation.
-5.25x + 6.890625 + x2 = -3.75 + 6.890625

Reorder the terms:
6.890625 + -5.25x + x2 = -3.75 + 6.890625

Combine like terms: -3.75 + 6.890625 = 3.140625
6.890625 + -5.25x + x2 = 3.140625

Factor a perfect square on the left side:
(x + -2.625)(x + -2.625) = 3.140625

Calculate the square root of the right side: 1.77218086

Break this problem into two subproblems by setting 
(x + -2.625) equal to 1.77218086 and -1.77218086.

Subproblem 1

x + -2.625 = 1.77218086 Simplifying x + -2.625 = 1.77218086 Reorder the terms: -2.625 + x = 1.77218086 Solving -2.625 + x = 1.77218086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.625' to each side of the equation. -2.625 + 2.625 + x = 1.77218086 + 2.625 Combine like terms: -2.625 + 2.625 = 0.000 0.000 + x = 1.77218086 + 2.625 x = 1.77218086 + 2.625 Combine like terms: 1.77218086 + 2.625 = 4.39718086 x = 4.39718086 Simplifying x = 4.39718086

Subproblem 2

x + -2.625 = -1.77218086 Simplifying x + -2.625 = -1.77218086 Reorder the terms: -2.625 + x = -1.77218086 Solving -2.625 + x = -1.77218086 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.625' to each side of the equation. -2.625 + 2.625 + x = -1.77218086 + 2.625 Combine like terms: -2.625 + 2.625 = 0.000 0.000 + x = -1.77218086 + 2.625 x = -1.77218086 + 2.625 Combine like terms: -1.77218086 + 2.625 = 0.85281914 x = 0.85281914 Simplifying x = 0.85281914

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.39718086, 0.85281914}

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