80=6x^2+16x

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Solution for 80=6x^2+16x equation:


Simplifying
80 = 6x2 + 16x

Reorder the terms:
80 = 16x + 6x2

Solving
80 = 16x + 6x2

Solving for variable 'x'.

Reorder the terms:
80 + -16x + -6x2 = 16x + -16x + 6x2 + -6x2

Combine like terms: 16x + -16x = 0
80 + -16x + -6x2 = 0 + 6x2 + -6x2
80 + -16x + -6x2 = 6x2 + -6x2

Combine like terms: 6x2 + -6x2 = 0
80 + -16x + -6x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(40 + -8x + -3x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(40 + -8x + -3x2)' equal to zero and attempt to solve: Simplifying 40 + -8x + -3x2 = 0 Solving 40 + -8x + -3x2 = 0 Begin completing the square. Divide all terms by -3 the coefficient of the squared term: Divide each side by '-3'. -13.33333333 + 2.666666667x + x2 = 0 Move the constant term to the right: Add '13.33333333' to each side of the equation. -13.33333333 + 2.666666667x + 13.33333333 + x2 = 0 + 13.33333333 Reorder the terms: -13.33333333 + 13.33333333 + 2.666666667x + x2 = 0 + 13.33333333 Combine like terms: -13.33333333 + 13.33333333 = 0.00000000 0.00000000 + 2.666666667x + x2 = 0 + 13.33333333 2.666666667x + x2 = 0 + 13.33333333 Combine like terms: 0 + 13.33333333 = 13.33333333 2.666666667x + x2 = 13.33333333 The x term is 2.666666667x. Take half its coefficient (1.333333334). Square it (1.777777780) and add it to both sides. Add '1.777777780' to each side of the equation. 2.666666667x + 1.777777780 + x2 = 13.33333333 + 1.777777780 Reorder the terms: 1.777777780 + 2.666666667x + x2 = 13.33333333 + 1.777777780 Combine like terms: 13.33333333 + 1.777777780 = 15.11111111 1.777777780 + 2.666666667x + x2 = 15.11111111 Factor a perfect square on the left side: (x + 1.333333334)(x + 1.333333334) = 15.11111111 Calculate the square root of the right side: 3.887301263 Break this problem into two subproblems by setting (x + 1.333333334) equal to 3.887301263 and -3.887301263.

Subproblem 1

x + 1.333333334 = 3.887301263 Simplifying x + 1.333333334 = 3.887301263 Reorder the terms: 1.333333334 + x = 3.887301263 Solving 1.333333334 + x = 3.887301263 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = 3.887301263 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = 3.887301263 + -1.333333334 x = 3.887301263 + -1.333333334 Combine like terms: 3.887301263 + -1.333333334 = 2.553967929 x = 2.553967929 Simplifying x = 2.553967929

Subproblem 2

x + 1.333333334 = -3.887301263 Simplifying x + 1.333333334 = -3.887301263 Reorder the terms: 1.333333334 + x = -3.887301263 Solving 1.333333334 + x = -3.887301263 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.333333334' to each side of the equation. 1.333333334 + -1.333333334 + x = -3.887301263 + -1.333333334 Combine like terms: 1.333333334 + -1.333333334 = 0.000000000 0.000000000 + x = -3.887301263 + -1.333333334 x = -3.887301263 + -1.333333334 Combine like terms: -3.887301263 + -1.333333334 = -5.220634597 x = -5.220634597 Simplifying x = -5.220634597

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.553967929, -5.220634597}

Solution

x = {2.553967929, -5.220634597}

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