-30x^2-33x+72=0

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Solution for -30x^2-33x+72=0 equation:


Simplifying
-30x2 + -33x + 72 = 0

Reorder the terms:
72 + -33x + -30x2 = 0

Solving
72 + -33x + -30x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(24 + -11x + -10x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(24 + -11x + -10x2)' equal to zero and attempt to solve: Simplifying 24 + -11x + -10x2 = 0 Solving 24 + -11x + -10x2 = 0 Begin completing the square. Divide all terms by -10 the coefficient of the squared term: Divide each side by '-10'. -2.4 + 1.1x + x2 = 0.0 Move the constant term to the right: Add '2.4' to each side of the equation. -2.4 + 1.1x + 2.4 + x2 = 0.0 + 2.4 Reorder the terms: -2.4 + 2.4 + 1.1x + x2 = 0.0 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + 1.1x + x2 = 0.0 + 2.4 1.1x + x2 = 0.0 + 2.4 Combine like terms: 0.0 + 2.4 = 2.4 1.1x + x2 = 2.4 The x term is 1.1x. Take half its coefficient (0.55). Square it (0.3025) and add it to both sides. Add '0.3025' to each side of the equation. 1.1x + 0.3025 + x2 = 2.4 + 0.3025 Reorder the terms: 0.3025 + 1.1x + x2 = 2.4 + 0.3025 Combine like terms: 2.4 + 0.3025 = 2.7025 0.3025 + 1.1x + x2 = 2.7025 Factor a perfect square on the left side: (x + 0.55)(x + 0.55) = 2.7025 Calculate the square root of the right side: 1.643928222 Break this problem into two subproblems by setting (x + 0.55) equal to 1.643928222 and -1.643928222.

Subproblem 1

x + 0.55 = 1.643928222 Simplifying x + 0.55 = 1.643928222 Reorder the terms: 0.55 + x = 1.643928222 Solving 0.55 + x = 1.643928222 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.55' to each side of the equation. 0.55 + -0.55 + x = 1.643928222 + -0.55 Combine like terms: 0.55 + -0.55 = 0.00 0.00 + x = 1.643928222 + -0.55 x = 1.643928222 + -0.55 Combine like terms: 1.643928222 + -0.55 = 1.093928222 x = 1.093928222 Simplifying x = 1.093928222

Subproblem 2

x + 0.55 = -1.643928222 Simplifying x + 0.55 = -1.643928222 Reorder the terms: 0.55 + x = -1.643928222 Solving 0.55 + x = -1.643928222 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.55' to each side of the equation. 0.55 + -0.55 + x = -1.643928222 + -0.55 Combine like terms: 0.55 + -0.55 = 0.00 0.00 + x = -1.643928222 + -0.55 x = -1.643928222 + -0.55 Combine like terms: -1.643928222 + -0.55 = -2.193928222 x = -2.193928222 Simplifying x = -2.193928222

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.093928222, -2.193928222}

Solution

x = {1.093928222, -2.193928222}

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