12x^2+20x-14=0

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Solution for 12x^2+20x-14=0 equation:


Simplifying
12x2 + 20x + -14 = 0

Reorder the terms:
-14 + 20x + 12x2 = 0

Solving
-14 + 20x + 12x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-7 + 10x + 6x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-7 + 10x + 6x2)' equal to zero and attempt to solve: Simplifying -7 + 10x + 6x2 = 0 Solving -7 + 10x + 6x2 = 0 Begin completing the square. Divide all terms by 6 the coefficient of the squared term: Divide each side by '6'. -1.166666667 + 1.666666667x + x2 = 0 Move the constant term to the right: Add '1.166666667' to each side of the equation. -1.166666667 + 1.666666667x + 1.166666667 + x2 = 0 + 1.166666667 Reorder the terms: -1.166666667 + 1.166666667 + 1.666666667x + x2 = 0 + 1.166666667 Combine like terms: -1.166666667 + 1.166666667 = 0.000000000 0.000000000 + 1.666666667x + x2 = 0 + 1.166666667 1.666666667x + x2 = 0 + 1.166666667 Combine like terms: 0 + 1.166666667 = 1.166666667 1.666666667x + x2 = 1.166666667 The x term is 1.666666667x. Take half its coefficient (0.8333333335). Square it (0.6944444447) and add it to both sides. Add '0.6944444447' to each side of the equation. 1.666666667x + 0.6944444447 + x2 = 1.166666667 + 0.6944444447 Reorder the terms: 0.6944444447 + 1.666666667x + x2 = 1.166666667 + 0.6944444447 Combine like terms: 1.166666667 + 0.6944444447 = 1.8611111117 0.6944444447 + 1.666666667x + x2 = 1.8611111117 Factor a perfect square on the left side: (x + 0.8333333335)(x + 0.8333333335) = 1.8611111117 Calculate the square root of the right side: 1.364225462 Break this problem into two subproblems by setting (x + 0.8333333335) equal to 1.364225462 and -1.364225462.

Subproblem 1

x + 0.8333333335 = 1.364225462 Simplifying x + 0.8333333335 = 1.364225462 Reorder the terms: 0.8333333335 + x = 1.364225462 Solving 0.8333333335 + x = 1.364225462 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = 1.364225462 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = 1.364225462 + -0.8333333335 x = 1.364225462 + -0.8333333335 Combine like terms: 1.364225462 + -0.8333333335 = 0.5308921285 x = 0.5308921285 Simplifying x = 0.5308921285

Subproblem 2

x + 0.8333333335 = -1.364225462 Simplifying x + 0.8333333335 = -1.364225462 Reorder the terms: 0.8333333335 + x = -1.364225462 Solving 0.8333333335 + x = -1.364225462 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.8333333335' to each side of the equation. 0.8333333335 + -0.8333333335 + x = -1.364225462 + -0.8333333335 Combine like terms: 0.8333333335 + -0.8333333335 = 0.0000000000 0.0000000000 + x = -1.364225462 + -0.8333333335 x = -1.364225462 + -0.8333333335 Combine like terms: -1.364225462 + -0.8333333335 = -2.1975587955 x = -2.1975587955 Simplifying x = -2.1975587955

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.5308921285, -2.1975587955}

Solution

x = {0.5308921285, -2.1975587955}

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