-2x^2+30x-260=0

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Solution for -2x^2+30x-260=0 equation:


Simplifying
-2x2 + 30x + -260 = 0

Reorder the terms:
-260 + 30x + -2x2 = 0

Solving
-260 + 30x + -2x2 = 0

Solving for variable 'x'.

Factor out the Greatest Common Factor (GCF), '2'.
2(-130 + 15x + -1x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-130 + 15x + -1x2)' equal to zero and attempt to solve: Simplifying -130 + 15x + -1x2 = 0 Solving -130 + 15x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 130 + -15x + x2 = 0 Move the constant term to the right: Add '-130' to each side of the equation. 130 + -15x + -130 + x2 = 0 + -130 Reorder the terms: 130 + -130 + -15x + x2 = 0 + -130 Combine like terms: 130 + -130 = 0 0 + -15x + x2 = 0 + -130 -15x + x2 = 0 + -130 Combine like terms: 0 + -130 = -130 -15x + x2 = -130 The x term is -15x. Take half its coefficient (-7.5). Square it (56.25) and add it to both sides. Add '56.25' to each side of the equation. -15x + 56.25 + x2 = -130 + 56.25 Reorder the terms: 56.25 + -15x + x2 = -130 + 56.25 Combine like terms: -130 + 56.25 = -73.75 56.25 + -15x + x2 = -73.75 Factor a perfect square on the left side: (x + -7.5)(x + -7.5) = -73.75 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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