2x(x-3)+5=3(x-1)

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Solution for 2x(x-3)+5=3(x-1) equation:


Simplifying
2x(x + -3) + 5 = 3(x + -1)

Reorder the terms:
2x(-3 + x) + 5 = 3(x + -1)
(-3 * 2x + x * 2x) + 5 = 3(x + -1)
(-6x + 2x2) + 5 = 3(x + -1)

Reorder the terms:
5 + -6x + 2x2 = 3(x + -1)

Reorder the terms:
5 + -6x + 2x2 = 3(-1 + x)
5 + -6x + 2x2 = (-1 * 3 + x * 3)
5 + -6x + 2x2 = (-3 + 3x)

Solving
5 + -6x + 2x2 = -3 + 3x

Solving for variable 'x'.

Reorder the terms:
5 + 3 + -6x + -3x + 2x2 = -3 + 3x + 3 + -3x

Combine like terms: 5 + 3 = 8
8 + -6x + -3x + 2x2 = -3 + 3x + 3 + -3x

Combine like terms: -6x + -3x = -9x
8 + -9x + 2x2 = -3 + 3x + 3 + -3x

Reorder the terms:
8 + -9x + 2x2 = -3 + 3 + 3x + -3x

Combine like terms: -3 + 3 = 0
8 + -9x + 2x2 = 0 + 3x + -3x
8 + -9x + 2x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
8 + -9x + 2x2 = 0

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

Divide each side by '2'.
4 + -4.5x + x2 = 0

Move the constant term to the right:

Add '-4' to each side of the equation.
4 + -4.5x + -4 + x2 = 0 + -4

Reorder the terms:
4 + -4 + -4.5x + x2 = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -4.5x + x2 = 0 + -4
-4.5x + x2 = 0 + -4

Combine like terms: 0 + -4 = -4
-4.5x + x2 = -4

The x term is -4.5x.  Take half its coefficient (-2.25).
Square it (5.0625) and add it to both sides.

Add '5.0625' to each side of the equation.
-4.5x + 5.0625 + x2 = -4 + 5.0625

Reorder the terms:
5.0625 + -4.5x + x2 = -4 + 5.0625

Combine like terms: -4 + 5.0625 = 1.0625
5.0625 + -4.5x + x2 = 1.0625

Factor a perfect square on the left side:
(x + -2.25)(x + -2.25) = 1.0625

Calculate the square root of the right side: 1.030776406

Break this problem into two subproblems by setting 
(x + -2.25) equal to 1.030776406 and -1.030776406.

Subproblem 1

x + -2.25 = 1.030776406 Simplifying x + -2.25 = 1.030776406 Reorder the terms: -2.25 + x = 1.030776406 Solving -2.25 + x = 1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = 1.030776406 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = 1.030776406 + 2.25 x = 1.030776406 + 2.25 Combine like terms: 1.030776406 + 2.25 = 3.280776406 x = 3.280776406 Simplifying x = 3.280776406

Subproblem 2

x + -2.25 = -1.030776406 Simplifying x + -2.25 = -1.030776406 Reorder the terms: -2.25 + x = -1.030776406 Solving -2.25 + x = -1.030776406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.25' to each side of the equation. -2.25 + 2.25 + x = -1.030776406 + 2.25 Combine like terms: -2.25 + 2.25 = 0.00 0.00 + x = -1.030776406 + 2.25 x = -1.030776406 + 2.25 Combine like terms: -1.030776406 + 2.25 = 1.219223594 x = 1.219223594 Simplifying x = 1.219223594

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.280776406, 1.219223594}

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