0=2x^2-12x+40

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Solution for 0=2x^2-12x+40 equation:


Simplifying
0 = 2x2 + -12x + 40

Reorder the terms:
0 = 40 + -12x + 2x2

Solving
0 = 40 + -12x + 2x2

Solving for variable 'x'.

Combine like terms: 0 + -40 = -40
-40 + 12x + -2x2 = 40 + -12x + 2x2 + -40 + 12x + -2x2

Reorder the terms:
-40 + 12x + -2x2 = 40 + -40 + -12x + 12x + 2x2 + -2x2

Combine like terms: 40 + -40 = 0
-40 + 12x + -2x2 = 0 + -12x + 12x + 2x2 + -2x2
-40 + 12x + -2x2 = -12x + 12x + 2x2 + -2x2

Combine like terms: -12x + 12x = 0
-40 + 12x + -2x2 = 0 + 2x2 + -2x2
-40 + 12x + -2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
-40 + 12x + -2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-20 + 6x + -1x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-20 + 6x + -1x2)' equal to zero and attempt to solve: Simplifying -20 + 6x + -1x2 = 0 Solving -20 + 6x + -1x2 = 0 Begin completing the square. Divide all terms by -1 the coefficient of the squared term: Divide each side by '-1'. 20 + -6x + x2 = 0 Move the constant term to the right: Add '-20' to each side of the equation. 20 + -6x + -20 + x2 = 0 + -20 Reorder the terms: 20 + -20 + -6x + x2 = 0 + -20 Combine like terms: 20 + -20 = 0 0 + -6x + x2 = 0 + -20 -6x + x2 = 0 + -20 Combine like terms: 0 + -20 = -20 -6x + x2 = -20 The x term is -6x. Take half its coefficient (-3). Square it (9) and add it to both sides. Add '9' to each side of the equation. -6x + 9 + x2 = -20 + 9 Reorder the terms: 9 + -6x + x2 = -20 + 9 Combine like terms: -20 + 9 = -11 9 + -6x + x2 = -11 Factor a perfect square on the left side: (x + -3)(x + -3) = -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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