-9x^2+9x+3=0

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Solution for -9x^2+9x+3=0 equation:


Simplifying
-9x2 + 9x + 3 = 0

Reorder the terms:
3 + 9x + -9x2 = 0

Solving
3 + 9x + -9x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(1 + 3x + -3x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(1 + 3x + -3x2)' equal to zero and attempt to solve: Simplifying 1 + 3x + -3x2 = 0 Solving 1 + 3x + -3x2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. -0.3333333333 + -1x + x2 = 0 Move the constant term to the right: Add '0.3333333333' to each side of the equation. -0.3333333333 + -1x + 0.3333333333 + x2 = 0 + 0.3333333333 Reorder the terms: -0.3333333333 + 0.3333333333 + -1x + x2 = 0 + 0.3333333333 Combine like terms: -0.3333333333 + 0.3333333333 = 0.0000000000 0.0000000000 + -1x + x2 = 0 + 0.3333333333 -1x + x2 = 0 + 0.3333333333 Combine like terms: 0 + 0.3333333333 = 0.3333333333 -1x + x2 = 0.3333333333 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 = 0.3333333333 + 0.25 Reorder the terms: 0.25 + -1x + x2 = 0.3333333333 + 0.25 Combine like terms: 0.3333333333 + 0.25 = 0.5833333333 0.25 + -1x + x2 = 0.5833333333 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = 0.5833333333 Calculate the square root of the right side: 0.763762616 Break this problem into two subproblems by setting (x + -0.5) equal to 0.763762616 and -0.763762616.

Subproblem 1

x + -0.5 = 0.763762616 Simplifying x + -0.5 = 0.763762616 Reorder the terms: -0.5 + x = 0.763762616 Solving -0.5 + x = 0.763762616 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 = 0.763762616 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = 0.763762616 + 0.5 x = 0.763762616 + 0.5 Combine like terms: 0.763762616 + 0.5 = 1.263762616 x = 1.263762616 Simplifying x = 1.263762616

Subproblem 2

x + -0.5 = -0.763762616 Simplifying x + -0.5 = -0.763762616 Reorder the terms: -0.5 + x = -0.763762616 Solving -0.5 + x = -0.763762616 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 = -0.763762616 + 0.5 Combine like terms: -0.5 + 0.5 = 0.0 0.0 + x = -0.763762616 + 0.5 x = -0.763762616 + 0.5 Combine like terms: -0.763762616 + 0.5 = -0.263762616 x = -0.263762616 Simplifying x = -0.263762616

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.263762616, -0.263762616}

Solution

x = {1.263762616, -0.263762616}

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