4x^2+20x+36=x^2+5x+9

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Solution for 4x^2+20x+36=x^2+5x+9 equation:


Simplifying
4x2 + 20x + 36 = x2 + 5x + 9

Reorder the terms:
36 + 20x + 4x2 = x2 + 5x + 9

Reorder the terms:
36 + 20x + 4x2 = 9 + 5x + x2

Solving
36 + 20x + 4x2 = 9 + 5x + x2

Solving for variable 'x'.

Reorder the terms:
36 + -9 + 20x + -5x + 4x2 + -1x2 = 9 + 5x + x2 + -9 + -5x + -1x2

Combine like terms: 36 + -9 = 27
27 + 20x + -5x + 4x2 + -1x2 = 9 + 5x + x2 + -9 + -5x + -1x2

Combine like terms: 20x + -5x = 15x
27 + 15x + 4x2 + -1x2 = 9 + 5x + x2 + -9 + -5x + -1x2

Combine like terms: 4x2 + -1x2 = 3x2
27 + 15x + 3x2 = 9 + 5x + x2 + -9 + -5x + -1x2

Reorder the terms:
27 + 15x + 3x2 = 9 + -9 + 5x + -5x + x2 + -1x2

Combine like terms: 9 + -9 = 0
27 + 15x + 3x2 = 0 + 5x + -5x + x2 + -1x2
27 + 15x + 3x2 = 5x + -5x + x2 + -1x2

Combine like terms: 5x + -5x = 0
27 + 15x + 3x2 = 0 + x2 + -1x2
27 + 15x + 3x2 = x2 + -1x2

Combine like terms: x2 + -1x2 = 0
27 + 15x + 3x2 = 0

Factor out the Greatest Common Factor (GCF), '3'.
3(9 + 5x + x2) = 0

Ignore the factor 3.

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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