4x^2=20x-36

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Solution for 4x^2=20x-36 equation:


Simplifying
4x2 = 20x + -36

Reorder the terms:
4x2 = -36 + 20x

Solving
4x2 = -36 + 20x

Solving for variable 'x'.

Reorder the terms:
36 + -20x + 4x2 = -36 + 20x + 36 + -20x

Reorder the terms:
36 + -20x + 4x2 = -36 + 36 + 20x + -20x

Combine like terms: -36 + 36 = 0
36 + -20x + 4x2 = 0 + 20x + -20x
36 + -20x + 4x2 = 20x + -20x

Combine like terms: 20x + -20x = 0
36 + -20x + 4x2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(9 + -5x + x2) = 0

Ignore the factor 4.

Subproblem 1

Set the factor '(9 + -5x + x2)' equal to zero and attempt to solve: Simplifying 9 + -5x + x2 = 0 Solving 9 + -5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-9' to each side of the equation. 9 + -5x + -9 + x2 = 0 + -9 Reorder the terms: 9 + -9 + -5x + x2 = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -5x + x2 = 0 + -9 -5x + x2 = 0 + -9 Combine like terms: 0 + -9 = -9 -5x + x2 = -9 The x term is -5x. Take half its coefficient (-2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. -5x + 6.25 + x2 = -9 + 6.25 Reorder the terms: 6.25 + -5x + x2 = -9 + 6.25 Combine like terms: -9 + 6.25 = -2.75 6.25 + -5x + x2 = -2.75 Factor a perfect square on the left side: (x + -2.5)(x + -2.5) = -2.75 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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