3x^2=3x-15

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Solution for 3x^2=3x-15 equation:


Simplifying
3x2 = 3x + -15

Reorder the terms:
3x2 = -15 + 3x

Solving
3x2 = -15 + 3x

Solving for variable 'x'.

Reorder the terms:
15 + -3x + 3x2 = -15 + 3x + 15 + -3x

Reorder the terms:
15 + -3x + 3x2 = -15 + 15 + 3x + -3x

Combine like terms: -15 + 15 = 0
15 + -3x + 3x2 = 0 + 3x + -3x
15 + -3x + 3x2 = 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -3x + 3x2 = 0

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

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -1x + x2)' equal to zero and attempt to solve: Simplifying 5 + -1x + x2 = 0 Solving 5 + -1x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + -1x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + -1x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1x + x2 = 0 + -5 -1x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -1x + x2 = -5 The x term is -1x. Take half its coefficient (-0.5). Square it (0.25) and add it to both sides. Add '0.25' to each side of the equation. -1x + 0.25 + x2 = -5 + 0.25 Reorder the terms: 0.25 + -1x + x2 = -5 + 0.25 Combine like terms: -5 + 0.25 = -4.75 0.25 + -1x + x2 = -4.75 Factor a perfect square on the left side: (x + -0.5)(x + -0.5) = -4.75 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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