3x^2+15=6x

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Solution for 3x^2+15=6x equation:


Simplifying
3x2 + 15 = 6x

Reorder the terms:
15 + 3x2 = 6x

Solving
15 + 3x2 = 6x

Solving for variable 'x'.

Reorder the terms:
15 + -6x + 3x2 = 6x + -6x

Combine like terms: 6x + -6x = 0
15 + -6x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(5 + -2x + x2) = 0

Ignore the factor 3.

Subproblem 1

Set the factor '(5 + -2x + x2)' equal to zero and attempt to solve: Simplifying 5 + -2x + x2 = 0 Solving 5 + -2x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-5' to each side of the equation. 5 + -2x + -5 + x2 = 0 + -5 Reorder the terms: 5 + -5 + -2x + x2 = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -2x + x2 = 0 + -5 -2x + x2 = 0 + -5 Combine like terms: 0 + -5 = -5 -2x + x2 = -5 The x term is -2x. Take half its coefficient (-1). Square it (1) and add it to both sides. Add '1' to each side of the equation. -2x + 1 + x2 = -5 + 1 Reorder the terms: 1 + -2x + x2 = -5 + 1 Combine like terms: -5 + 1 = -4 1 + -2x + x2 = -4 Factor a perfect square on the left side: (x + -1)(x + -1) = -4 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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