(3x-7)(2x-5)-x(4x-3)=

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Solution for (3x-7)(2x-5)-x(4x-3)= equation:


Simplifying
(3x + -7)(2x + -5) + -1x(4x + -3) = 0

Reorder the terms:
(-7 + 3x)(2x + -5) + -1x(4x + -3) = 0

Reorder the terms:
(-7 + 3x)(-5 + 2x) + -1x(4x + -3) = 0

Multiply (-7 + 3x) * (-5 + 2x)
(-7(-5 + 2x) + 3x * (-5 + 2x)) + -1x(4x + -3) = 0
((-5 * -7 + 2x * -7) + 3x * (-5 + 2x)) + -1x(4x + -3) = 0
((35 + -14x) + 3x * (-5 + 2x)) + -1x(4x + -3) = 0
(35 + -14x + (-5 * 3x + 2x * 3x)) + -1x(4x + -3) = 0
(35 + -14x + (-15x + 6x2)) + -1x(4x + -3) = 0

Combine like terms: -14x + -15x = -29x
(35 + -29x + 6x2) + -1x(4x + -3) = 0

Reorder the terms:
35 + -29x + 6x2 + -1x(-3 + 4x) = 0
35 + -29x + 6x2 + (-3 * -1x + 4x * -1x) = 0
35 + -29x + 6x2 + (3x + -4x2) = 0

Reorder the terms:
35 + -29x + 3x + 6x2 + -4x2 = 0

Combine like terms: -29x + 3x = -26x
35 + -26x + 6x2 + -4x2 = 0

Combine like terms: 6x2 + -4x2 = 2x2
35 + -26x + 2x2 = 0

Solving
35 + -26x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
17.5 + -13x + x2 = 0

Move the constant term to the right:

Add '-17.5' to each side of the equation.
17.5 + -13x + -17.5 + x2 = 0 + -17.5

Reorder the terms:
17.5 + -17.5 + -13x + x2 = 0 + -17.5

Combine like terms: 17.5 + -17.5 = 0.0
0.0 + -13x + x2 = 0 + -17.5
-13x + x2 = 0 + -17.5

Combine like terms: 0 + -17.5 = -17.5
-13x + x2 = -17.5

The x term is -13x.  Take half its coefficient (-6.5).
Square it (42.25) and add it to both sides.

Add '42.25' to each side of the equation.
-13x + 42.25 + x2 = -17.5 + 42.25

Reorder the terms:
42.25 + -13x + x2 = -17.5 + 42.25

Combine like terms: -17.5 + 42.25 = 24.75
42.25 + -13x + x2 = 24.75

Factor a perfect square on the left side:
(x + -6.5)(x + -6.5) = 24.75

Calculate the square root of the right side: 4.974937186

Break this problem into two subproblems by setting 
(x + -6.5) equal to 4.974937186 and -4.974937186.

Subproblem 1

x + -6.5 = 4.974937186 Simplifying x + -6.5 = 4.974937186 Reorder the terms: -6.5 + x = 4.974937186 Solving -6.5 + x = 4.974937186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = 4.974937186 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = 4.974937186 + 6.5 x = 4.974937186 + 6.5 Combine like terms: 4.974937186 + 6.5 = 11.474937186 x = 11.474937186 Simplifying x = 11.474937186

Subproblem 2

x + -6.5 = -4.974937186 Simplifying x + -6.5 = -4.974937186 Reorder the terms: -6.5 + x = -4.974937186 Solving -6.5 + x = -4.974937186 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6.5' to each side of the equation. -6.5 + 6.5 + x = -4.974937186 + 6.5 Combine like terms: -6.5 + 6.5 = 0.0 0.0 + x = -4.974937186 + 6.5 x = -4.974937186 + 6.5 Combine like terms: -4.974937186 + 6.5 = 1.525062814 x = 1.525062814 Simplifying x = 1.525062814

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.474937186, 1.525062814}

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