-5x^2-3x-6=0

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Solution for -5x^2-3x-6=0 equation:


Simplifying
-5x2 + -3x + -6 = 0

Reorder the terms:
-6 + -3x + -5x2 = 0

Solving
-6 + -3x + -5x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(6 + 3x + 5x2) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(6 + 3x + 5x2)' equal to zero and attempt to solve: Simplifying 6 + 3x + 5x2 = 0 Solving 6 + 3x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. 1.2 + 0.6x + x2 = 0 Move the constant term to the right: Add '-1.2' to each side of the equation. 1.2 + 0.6x + -1.2 + x2 = 0 + -1.2 Reorder the terms: 1.2 + -1.2 + 0.6x + x2 = 0 + -1.2 Combine like terms: 1.2 + -1.2 = 0.0 0.0 + 0.6x + x2 = 0 + -1.2 0.6x + x2 = 0 + -1.2 Combine like terms: 0 + -1.2 = -1.2 0.6x + x2 = -1.2 The x term is 0.6x. Take half its coefficient (0.3). Square it (0.09) and add it to both sides. Add '0.09' to each side of the equation. 0.6x + 0.09 + x2 = -1.2 + 0.09 Reorder the terms: 0.09 + 0.6x + x2 = -1.2 + 0.09 Combine like terms: -1.2 + 0.09 = -1.11 0.09 + 0.6x + x2 = -1.11 Factor a perfect square on the left side: (x + 0.3)(x + 0.3) = -1.11 Can't calculate square root of the right side. The solution to this equation could not be determined. This subproblem is being ignored because a solution could not be determined. The solution to this equation could not be determined.

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