2x-4x^2+3=9

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Solution for 2x-4x^2+3=9 equation:


Simplifying
2x + -4x2 + 3 = 9

Reorder the terms:
3 + 2x + -4x2 = 9

Solving
3 + 2x + -4x2 = 9

Solving for variable 'x'.

Reorder the terms:
3 + -9 + 2x + -4x2 = 9 + -9

Combine like terms: 3 + -9 = -6
-6 + 2x + -4x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-6 + 2x + -4x2 = 0

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

Ignore the factor 2.

Subproblem 1

Set the factor '(-3 + x + -2x2)' equal to zero and attempt to solve: Simplifying -3 + x + -2x2 = 0 Solving -3 + x + -2x2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. 1.5 + -0.5x + x2 = 0 Move the constant term to the right: Add '-1.5' to each side of the equation. 1.5 + -0.5x + -1.5 + x2 = 0 + -1.5 Reorder the terms: 1.5 + -1.5 + -0.5x + x2 = 0 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + -0.5x + x2 = 0 + -1.5 -0.5x + x2 = 0 + -1.5 Combine like terms: 0 + -1.5 = -1.5 -0.5x + x2 = -1.5 The x term is x. 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. -0.5x + 0.25 + x2 = -1.5 + 0.25 Reorder the terms: 0.25 + -0.5x + x2 = -1.5 + 0.25 Combine like terms: -1.5 + 0.25 = -1.25 0.25 + -0.5x + x2 = -1.25 Factor a perfect square on the left side: (x + 0.5)(x + 0.5) = -1.25 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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