5x(9-x)-(17-3x)=-3(2-5x)

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Solution for 5x(9-x)-(17-3x)=-3(2-5x) equation:


Simplifying
5x(9 + -1x) + -1(17 + -3x) = -3(2 + -5x)
(9 * 5x + -1x * 5x) + -1(17 + -3x) = -3(2 + -5x)
(45x + -5x2) + -1(17 + -3x) = -3(2 + -5x)
45x + -5x2 + (17 * -1 + -3x * -1) = -3(2 + -5x)
45x + -5x2 + (-17 + 3x) = -3(2 + -5x)

Reorder the terms:
-17 + 45x + 3x + -5x2 = -3(2 + -5x)

Combine like terms: 45x + 3x = 48x
-17 + 48x + -5x2 = -3(2 + -5x)
-17 + 48x + -5x2 = (2 * -3 + -5x * -3)
-17 + 48x + -5x2 = (-6 + 15x)

Solving
-17 + 48x + -5x2 = -6 + 15x

Solving for variable 'x'.

Reorder the terms:
-17 + 6 + 48x + -15x + -5x2 = -6 + 15x + 6 + -15x

Combine like terms: -17 + 6 = -11
-11 + 48x + -15x + -5x2 = -6 + 15x + 6 + -15x

Combine like terms: 48x + -15x = 33x
-11 + 33x + -5x2 = -6 + 15x + 6 + -15x

Reorder the terms:
-11 + 33x + -5x2 = -6 + 6 + 15x + -15x

Combine like terms: -6 + 6 = 0
-11 + 33x + -5x2 = 0 + 15x + -15x
-11 + 33x + -5x2 = 15x + -15x

Combine like terms: 15x + -15x = 0
-11 + 33x + -5x2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
2.2 + -6.6x + x2 = 0

Move the constant term to the right:

Add '-2.2' to each side of the equation.
2.2 + -6.6x + -2.2 + x2 = 0 + -2.2

Reorder the terms:
2.2 + -2.2 + -6.6x + x2 = 0 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + -6.6x + x2 = 0 + -2.2
-6.6x + x2 = 0 + -2.2

Combine like terms: 0 + -2.2 = -2.2
-6.6x + x2 = -2.2

The x term is -6.6x.  Take half its coefficient (-3.3).
Square it (10.89) and add it to both sides.

Add '10.89' to each side of the equation.
-6.6x + 10.89 + x2 = -2.2 + 10.89

Reorder the terms:
10.89 + -6.6x + x2 = -2.2 + 10.89

Combine like terms: -2.2 + 10.89 = 8.69
10.89 + -6.6x + x2 = 8.69

Factor a perfect square on the left side:
(x + -3.3)(x + -3.3) = 8.69

Calculate the square root of the right side: 2.947880595

Break this problem into two subproblems by setting 
(x + -3.3) equal to 2.947880595 and -2.947880595.

Subproblem 1

x + -3.3 = 2.947880595 Simplifying x + -3.3 = 2.947880595 Reorder the terms: -3.3 + x = 2.947880595 Solving -3.3 + x = 2.947880595 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.3' to each side of the equation. -3.3 + 3.3 + x = 2.947880595 + 3.3 Combine like terms: -3.3 + 3.3 = 0.0 0.0 + x = 2.947880595 + 3.3 x = 2.947880595 + 3.3 Combine like terms: 2.947880595 + 3.3 = 6.247880595 x = 6.247880595 Simplifying x = 6.247880595

Subproblem 2

x + -3.3 = -2.947880595 Simplifying x + -3.3 = -2.947880595 Reorder the terms: -3.3 + x = -2.947880595 Solving -3.3 + x = -2.947880595 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '3.3' to each side of the equation. -3.3 + 3.3 + x = -2.947880595 + 3.3 Combine like terms: -3.3 + 3.3 = 0.0 0.0 + x = -2.947880595 + 3.3 x = -2.947880595 + 3.3 Combine like terms: -2.947880595 + 3.3 = 0.352119405 x = 0.352119405 Simplifying x = 0.352119405

Solution

The solution to the problem is based on the solutions from the subproblems. x = {6.247880595, 0.352119405}

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