5x-3[(x-1)(x-5)]=

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Solution for 5x-3[(x-1)(x-5)]= equation:


Simplifying
5x + -3[(x + -1)(x + -5)] = 0

Reorder the terms:
5x + -3[(-1 + x)(x + -5)] = 0

Reorder the terms:
5x + -3[(-1 + x)(-5 + x)] = 0

Multiply (-1 + x) * (-5 + x)
5x + -3[(-1(-5 + x) + x(-5 + x))] = 0
5x + -3[((-5 * -1 + x * -1) + x(-5 + x))] = 0
5x + -3[((5 + -1x) + x(-5 + x))] = 0
5x + -3[(5 + -1x + (-5 * x + x * x))] = 0
5x + -3[(5 + -1x + (-5x + x2))] = 0

Combine like terms: -1x + -5x = -6x
5x + -3[(5 + -6x + x2)] = 0
5x + [5 * -3 + -6x * -3 + x2 * -3] = 0
5x + [-15 + 18x + -3x2] = 0

Reorder the terms:
-15 + 5x + 18x + -3x2 = 0

Combine like terms: 5x + 18x = 23x
-15 + 23x + -3x2 = 0

Solving
-15 + 23x + -3x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
5 + -7.666666667x + x2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -7.666666667x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -7.666666667x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -7.666666667x + x2 = 0 + -5
-7.666666667x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-7.666666667x + x2 = -5

The x term is -7.666666667x.  Take half its coefficient (-3.833333334).
Square it (14.69444445) and add it to both sides.

Add '14.69444445' to each side of the equation.
-7.666666667x + 14.69444445 + x2 = -5 + 14.69444445

Reorder the terms:
14.69444445 + -7.666666667x + x2 = -5 + 14.69444445

Combine like terms: -5 + 14.69444445 = 9.69444445
14.69444445 + -7.666666667x + x2 = 9.69444445

Factor a perfect square on the left side:
(x + -3.833333334)(x + -3.833333334) = 9.69444445

Calculate the square root of the right side: 3.113590283

Break this problem into two subproblems by setting 
(x + -3.833333334) equal to 3.113590283 and -3.113590283.

Subproblem 1

x + -3.833333334 = 3.113590283 Simplifying x + -3.833333334 = 3.113590283 Reorder the terms: -3.833333334 + x = 3.113590283 Solving -3.833333334 + x = 3.113590283 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = 3.113590283 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = 3.113590283 + 3.833333334 x = 3.113590283 + 3.833333334 Combine like terms: 3.113590283 + 3.833333334 = 6.946923617 x = 6.946923617 Simplifying x = 6.946923617

Subproblem 2

x + -3.833333334 = -3.113590283 Simplifying x + -3.833333334 = -3.113590283 Reorder the terms: -3.833333334 + x = -3.113590283 Solving -3.833333334 + x = -3.113590283 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.833333334' to each side of the equation. -3.833333334 + 3.833333334 + x = -3.113590283 + 3.833333334 Combine like terms: -3.833333334 + 3.833333334 = 0.000000000 0.000000000 + x = -3.113590283 + 3.833333334 x = -3.113590283 + 3.833333334 Combine like terms: -3.113590283 + 3.833333334 = 0.719743051 x = 0.719743051 Simplifying x = 0.719743051

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.946923617, 0.719743051}

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