10=10x(9x-10)

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Solution for 10=10x(9x-10) equation:


Simplifying
10 = 10x(9x + -10)

Reorder the terms:
10 = 10x(-10 + 9x)
10 = (-10 * 10x + 9x * 10x)
10 = (-100x + 90x2)

Solving
10 = -100x + 90x2

Solving for variable 'x'.

Reorder the terms:
10 + 100x + -90x2 = -100x + 100x + 90x2 + -90x2

Combine like terms: -100x + 100x = 0
10 + 100x + -90x2 = 0 + 90x2 + -90x2
10 + 100x + -90x2 = 90x2 + -90x2

Combine like terms: 90x2 + -90x2 = 0
10 + 100x + -90x2 = 0

Factor out the Greatest Common Factor (GCF), '10'.
10(1 + 10x + -9x2) = 0

Ignore the factor 10.

Subproblem 1

Set the factor '(1 + 10x + -9x2)' equal to zero and attempt to solve: Simplifying 1 + 10x + -9x2 = 0 Solving 1 + 10x + -9x2 = 0 Begin completing the square. Divide all terms by -9 the coefficient of the squared term: Divide each side by '-9'. -0.1111111111 + -1.111111111x + x2 = 0 Move the constant term to the right: Add '0.1111111111' to each side of the equation. -0.1111111111 + -1.111111111x + 0.1111111111 + x2 = 0 + 0.1111111111 Reorder the terms: -0.1111111111 + 0.1111111111 + -1.111111111x + x2 = 0 + 0.1111111111 Combine like terms: -0.1111111111 + 0.1111111111 = 0.0000000000 0.0000000000 + -1.111111111x + x2 = 0 + 0.1111111111 -1.111111111x + x2 = 0 + 0.1111111111 Combine like terms: 0 + 0.1111111111 = 0.1111111111 -1.111111111x + x2 = 0.1111111111 The x term is -1.111111111x. Take half its coefficient (-0.5555555555). Square it (0.3086419752) and add it to both sides. Add '0.3086419752' to each side of the equation. -1.111111111x + 0.3086419752 + x2 = 0.1111111111 + 0.3086419752 Reorder the terms: 0.3086419752 + -1.111111111x + x2 = 0.1111111111 + 0.3086419752 Combine like terms: 0.1111111111 + 0.3086419752 = 0.4197530863 0.3086419752 + -1.111111111x + x2 = 0.4197530863 Factor a perfect square on the left side: (x + -0.5555555555)(x + -0.5555555555) = 0.4197530863 Calculate the square root of the right side: 0.647883544 Break this problem into two subproblems by setting (x + -0.5555555555) equal to 0.647883544 and -0.647883544.

Subproblem 1

x + -0.5555555555 = 0.647883544 Simplifying x + -0.5555555555 = 0.647883544 Reorder the terms: -0.5555555555 + x = 0.647883544 Solving -0.5555555555 + x = 0.647883544 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5555555555' to each side of the equation. -0.5555555555 + 0.5555555555 + x = 0.647883544 + 0.5555555555 Combine like terms: -0.5555555555 + 0.5555555555 = 0.0000000000 0.0000000000 + x = 0.647883544 + 0.5555555555 x = 0.647883544 + 0.5555555555 Combine like terms: 0.647883544 + 0.5555555555 = 1.2034390995 x = 1.2034390995 Simplifying x = 1.2034390995

Subproblem 2

x + -0.5555555555 = -0.647883544 Simplifying x + -0.5555555555 = -0.647883544 Reorder the terms: -0.5555555555 + x = -0.647883544 Solving -0.5555555555 + x = -0.647883544 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '0.5555555555' to each side of the equation. -0.5555555555 + 0.5555555555 + x = -0.647883544 + 0.5555555555 Combine like terms: -0.5555555555 + 0.5555555555 = 0.0000000000 0.0000000000 + x = -0.647883544 + 0.5555555555 x = -0.647883544 + 0.5555555555 Combine like terms: -0.647883544 + 0.5555555555 = -0.0923279885 x = -0.0923279885 Simplifying x = -0.0923279885

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.2034390995, -0.0923279885}

Solution

x = {1.2034390995, -0.0923279885}

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