18(x)(x)-10x-4=0

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Solution for 18(x)(x)-10x-4=0 equation:


Simplifying
18(x)(x) + -10x + -4 = 0

Multiply x * x
18x2 + -10x + -4 = 0

Reorder the terms:
-4 + -10x + 18x2 = 0

Solving
-4 + -10x + 18x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-2 + -5x + 9x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-2 + -5x + 9x2)' equal to zero and attempt to solve: Simplifying -2 + -5x + 9x2 = 0 Solving -2 + -5x + 9x2 = 0 Begin completing the square. Divide all terms by 9 the coefficient of the squared term: Divide each side by '9'. -0.2222222222 + -0.5555555556x + x2 = 0 Move the constant term to the right: Add '0.2222222222' to each side of the equation. -0.2222222222 + -0.5555555556x + 0.2222222222 + x2 = 0 + 0.2222222222 Reorder the terms: -0.2222222222 + 0.2222222222 + -0.5555555556x + x2 = 0 + 0.2222222222 Combine like terms: -0.2222222222 + 0.2222222222 = 0.0000000000 0.0000000000 + -0.5555555556x + x2 = 0 + 0.2222222222 -0.5555555556x + x2 = 0 + 0.2222222222 Combine like terms: 0 + 0.2222222222 = 0.2222222222 -0.5555555556x + x2 = 0.2222222222 The x term is -0.5555555556x. Take half its coefficient (-0.2777777778). Square it (0.07716049384) and add it to both sides. Add '0.07716049384' to each side of the equation. -0.5555555556x + 0.07716049384 + x2 = 0.2222222222 + 0.07716049384 Reorder the terms: 0.07716049384 + -0.5555555556x + x2 = 0.2222222222 + 0.07716049384 Combine like terms: 0.2222222222 + 0.07716049384 = 0.29938271604 0.07716049384 + -0.5555555556x + x2 = 0.29938271604 Factor a perfect square on the left side: (x + -0.2777777778)(x + -0.2777777778) = 0.29938271604 Calculate the square root of the right side: 0.547158767 Break this problem into two subproblems by setting (x + -0.2777777778) equal to 0.547158767 and -0.547158767.

Subproblem 1

x + -0.2777777778 = 0.547158767 Simplifying x + -0.2777777778 = 0.547158767 Reorder the terms: -0.2777777778 + x = 0.547158767 Solving -0.2777777778 + x = 0.547158767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + x = 0.547158767 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + x = 0.547158767 + 0.2777777778 x = 0.547158767 + 0.2777777778 Combine like terms: 0.547158767 + 0.2777777778 = 0.8249365448 x = 0.8249365448 Simplifying x = 0.8249365448

Subproblem 2

x + -0.2777777778 = -0.547158767 Simplifying x + -0.2777777778 = -0.547158767 Reorder the terms: -0.2777777778 + x = -0.547158767 Solving -0.2777777778 + x = -0.547158767 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.2777777778' to each side of the equation. -0.2777777778 + 0.2777777778 + x = -0.547158767 + 0.2777777778 Combine like terms: -0.2777777778 + 0.2777777778 = 0.0000000000 0.0000000000 + x = -0.547158767 + 0.2777777778 x = -0.547158767 + 0.2777777778 Combine like terms: -0.547158767 + 0.2777777778 = -0.2693809892 x = -0.2693809892 Simplifying x = -0.2693809892

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.8249365448, -0.2693809892}

Solution

x = {0.8249365448, -0.2693809892}

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