15x^2-36x+15=0

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Solution for 15x^2-36x+15=0 equation:


Simplifying
15x2 + -36x + 15 = 0

Reorder the terms:
15 + -36x + 15x2 = 0

Solving
15 + -36x + 15x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + -12x + 5x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -12x + 5x2)' equal to zero and attempt to solve: Simplifying 5 + -12x + 5x2 = 0 Solving 5 + -12x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 1 + -2.4x + x2 = 0 Move the constant term to the right: Add '-1' to each side of the equation. 1 + -2.4x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + -2.4x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + -2.4x + x2 = 0 + -1 -2.4x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 -2.4x + x2 = -1 The x term is -2.4x. Take half its coefficient (-1.2). Square it (1.44) and add it to both sides. Add '1.44' to each side of the equation. -2.4x + 1.44 + x2 = -1 + 1.44 Reorder the terms: 1.44 + -2.4x + x2 = -1 + 1.44 Combine like terms: -1 + 1.44 = 0.44 1.44 + -2.4x + x2 = 0.44 Factor a perfect square on the left side: (x + -1.2)(x + -1.2) = 0.44 Calculate the square root of the right side: 0.663324958 Break this problem into two subproblems by setting (x + -1.2) equal to 0.663324958 and -0.663324958.

Subproblem 1

x + -1.2 = 0.663324958 Simplifying x + -1.2 = 0.663324958 Reorder the terms: -1.2 + x = 0.663324958 Solving -1.2 + x = 0.663324958 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = 0.663324958 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = 0.663324958 + 1.2 x = 0.663324958 + 1.2 Combine like terms: 0.663324958 + 1.2 = 1.863324958 x = 1.863324958 Simplifying x = 1.863324958

Subproblem 2

x + -1.2 = -0.663324958 Simplifying x + -1.2 = -0.663324958 Reorder the terms: -1.2 + x = -0.663324958 Solving -1.2 + x = -0.663324958 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.2' to each side of the equation. -1.2 + 1.2 + x = -0.663324958 + 1.2 Combine like terms: -1.2 + 1.2 = 0.0 0.0 + x = -0.663324958 + 1.2 x = -0.663324958 + 1.2 Combine like terms: -0.663324958 + 1.2 = 0.536675042 x = 0.536675042 Simplifying x = 0.536675042

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.863324958, 0.536675042}

Solution

x = {1.863324958, 0.536675042}

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