30x^2-144x+90=0

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Solution for 30x^2-144x+90=0 equation:


Simplifying
30x2 + -144x + 90 = 0

Reorder the terms:
90 + -144x + 30x2 = 0

Solving
90 + -144x + 30x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '6'.
6(15 + -24x + 5x2) = 0

Ignore the factor 6.

Subproblem 1

Set the factor '(15 + -24x + 5x2)' equal to zero and attempt to solve: Simplifying 15 + -24x + 5x2 = 0 Solving 15 + -24x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 3 + -4.8x + x2 = 0 Move the constant term to the right: Add '-3' to each side of the equation. 3 + -4.8x + -3 + x2 = 0 + -3 Reorder the terms: 3 + -3 + -4.8x + x2 = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -4.8x + x2 = 0 + -3 -4.8x + x2 = 0 + -3 Combine like terms: 0 + -3 = -3 -4.8x + x2 = -3 The x term is -4.8x. Take half its coefficient (-2.4). Square it (5.76) and add it to both sides. Add '5.76' to each side of the equation. -4.8x + 5.76 + x2 = -3 + 5.76 Reorder the terms: 5.76 + -4.8x + x2 = -3 + 5.76 Combine like terms: -3 + 5.76 = 2.76 5.76 + -4.8x + x2 = 2.76 Factor a perfect square on the left side: (x + -2.4)(x + -2.4) = 2.76 Calculate the square root of the right side: 1.661324773 Break this problem into two subproblems by setting (x + -2.4) equal to 1.661324773 and -1.661324773.

Subproblem 1

x + -2.4 = 1.661324773 Simplifying x + -2.4 = 1.661324773 Reorder the terms: -2.4 + x = 1.661324773 Solving -2.4 + x = 1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = 1.661324773 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = 1.661324773 + 2.4 x = 1.661324773 + 2.4 Combine like terms: 1.661324773 + 2.4 = 4.061324773 x = 4.061324773 Simplifying x = 4.061324773

Subproblem 2

x + -2.4 = -1.661324773 Simplifying x + -2.4 = -1.661324773 Reorder the terms: -2.4 + x = -1.661324773 Solving -2.4 + x = -1.661324773 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2.4' to each side of the equation. -2.4 + 2.4 + x = -1.661324773 + 2.4 Combine like terms: -2.4 + 2.4 = 0.0 0.0 + x = -1.661324773 + 2.4 x = -1.661324773 + 2.4 Combine like terms: -1.661324773 + 2.4 = 0.738675227 x = 0.738675227 Simplifying x = 0.738675227

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.061324773, 0.738675227}

Solution

x = {4.061324773, 0.738675227}

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