5x(3x-3)=9

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


Simplifying
5x(3x + -3) = 9

Reorder the terms:
5x(-3 + 3x) = 9
(-3 * 5x + 3x * 5x) = 9
(-15x + 15x2) = 9

Solving
-15x + 15x2 = 9

Solving for variable 'x'.

Reorder the terms:
-9 + -15x + 15x2 = 9 + -9

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

Factor out the Greatest Common Factor (GCF), '3'.
3(-3 + -5x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(-3 + -5x + 5x2)' equal to zero and attempt to solve: Simplifying -3 + -5x + 5x2 = 0 Solving -3 + -5x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -0.6 + -1x + x2 = 0 Move the constant term to the right: Add '0.6' to each side of the equation. -0.6 + -1x + 0.6 + x2 = 0 + 0.6 Reorder the terms: -0.6 + 0.6 + -1x + x2 = 0 + 0.6 Combine like terms: -0.6 + 0.6 = 0.0 0.0 + -1x + x2 = 0 + 0.6 -1x + x2 = 0 + 0.6 Combine like terms: 0 + 0.6 = 0.6 -1x + x2 = 0.6 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = 0.6 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 0.6 + 0.25 Combine like terms: 0.6 + 0.25 = 0.85 0.25 + -1x + x2 = 0.85 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 0.85 Calculate the square root of the right side: 0.921954446 Break this problem into two subproblems by setting (x + -0.5) equal to 0.921954446 and -0.921954446.

Subproblem 1

x + -0.5 = 0.921954446 Simplifying x + -0.5 = 0.921954446 Reorder the terms: -0.5 + x = 0.921954446 Solving -0.5 + x = 0.921954446 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = 0.921954446 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.921954446 + 0.5 x = 0.921954446 + 0.5 Combine like terms: 0.921954446 + 0.5 = 1.421954446 x = 1.421954446 Simplifying x = 1.421954446

Subproblem 2

x + -0.5 = -0.921954446 Simplifying x + -0.5 = -0.921954446 Reorder the terms: -0.5 + x = -0.921954446 Solving -0.5 + x = -0.921954446 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5' to each side of the equation. -0.5 + 0.5 + x = -0.921954446 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.921954446 + 0.5 x = -0.921954446 + 0.5 Combine like terms: -0.921954446 + 0.5 = -0.421954446 x = -0.421954446 Simplifying x = -0.421954446

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.421954446, -0.421954446}

Solution

x = {1.421954446, -0.421954446}

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