2x^2+24x=-66

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Solution for 2x^2+24x=-66 equation:


Simplifying
2x2 + 24x = -66

Reorder the terms:
24x + 2x2 = -66

Solving
24x + 2x2 = -66

Solving for variable 'x'.

Reorder the terms:
66 + 24x + 2x2 = -66 + 66

Combine like terms: -66 + 66 = 0
66 + 24x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(33 + 12x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(33 + 12x + x2)' equal to zero and attempt to solve: Simplifying 33 + 12x + x2 = 0 Solving 33 + 12x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-33' to each side of the equation. 33 + 12x + -33 + x2 = 0 + -33 Reorder the terms: 33 + -33 + 12x + x2 = 0 + -33 Combine like terms: 33 + -33 = 0 0 + 12x + x2 = 0 + -33 12x + x2 = 0 + -33 Combine like terms: 0 + -33 = -33 12x + x2 = -33 The x term is 12x. Take half its coefficient (6). Square it (36) and add it to both sides. Add '36' to each side of the equation. 12x + 36 + x2 = -33 + 36 Reorder the terms: 36 + 12x + x2 = -33 + 36 Combine like terms: -33 + 36 = 3 36 + 12x + x2 = 3 Factor a perfect square on the left side: (x + 6)(x + 6) = 3 Calculate the square root of the right side: 1.732050808 Break this problem into two subproblems by setting (x + 6) equal to 1.732050808 and -1.732050808.

Subproblem 1

x + 6 = 1.732050808 Simplifying x + 6 = 1.732050808 Reorder the terms: 6 + x = 1.732050808 Solving 6 + x = 1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 1.732050808 + -6 Combine like terms: 6 + -6 = 0 0 + x = 1.732050808 + -6 x = 1.732050808 + -6 Combine like terms: 1.732050808 + -6 = -4.267949192 x = -4.267949192 Simplifying x = -4.267949192

Subproblem 2

x + 6 = -1.732050808 Simplifying x + 6 = -1.732050808 Reorder the terms: 6 + x = -1.732050808 Solving 6 + x = -1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -1.732050808 + -6 Combine like terms: 6 + -6 = 0 0 + x = -1.732050808 + -6 x = -1.732050808 + -6 Combine like terms: -1.732050808 + -6 = -7.732050808 x = -7.732050808 Simplifying x = -7.732050808

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.267949192, -7.732050808}

Solution

x = {-4.267949192, -7.732050808}

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