4x^2-16x+20=2x^2-18

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Solution for 4x^2-16x+20=2x^2-18 equation:


Simplifying
4x2 + -16x + 20 = 2x2 + -18

Reorder the terms:
20 + -16x + 4x2 = 2x2 + -18

Reorder the terms:
20 + -16x + 4x2 = -18 + 2x2

Solving
20 + -16x + 4x2 = -18 + 2x2

Solving for variable 'x'.

Reorder the terms:
20 + 18 + -16x + 4x2 + -2x2 = -18 + 2x2 + 18 + -2x2

Combine like terms: 20 + 18 = 38
38 + -16x + 4x2 + -2x2 = -18 + 2x2 + 18 + -2x2

Combine like terms: 4x2 + -2x2 = 2x2
38 + -16x + 2x2 = -18 + 2x2 + 18 + -2x2

Reorder the terms:
38 + -16x + 2x2 = -18 + 18 + 2x2 + -2x2

Combine like terms: -18 + 18 = 0
38 + -16x + 2x2 = 0 + 2x2 + -2x2
38 + -16x + 2x2 = 2x2 + -2x2

Combine like terms: 2x2 + -2x2 = 0
38 + -16x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(19 + -8x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(19 + -8x + x2)' equal to zero and attempt to solve: Simplifying 19 + -8x + x2 = 0 Solving 19 + -8x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-19' to each side of the equation. 19 + -8x + -19 + x2 = 0 + -19 Reorder the terms: 19 + -19 + -8x + x2 = 0 + -19 Combine like terms: 19 + -19 = 0 0 + -8x + x2 = 0 + -19 -8x + x2 = 0 + -19 Combine like terms: 0 + -19 = -19 -8x + x2 = -19 The x term is -8x. Take half its coefficient (-4). Square it (16) and add it to both sides. Add '16' to each side of the equation. -8x + 16 + x2 = -19 + 16 Reorder the terms: 16 + -8x + x2 = -19 + 16 Combine like terms: -19 + 16 = -3 16 + -8x + x2 = -3 Factor a perfect square on the left side: (x + -4)(x + -4) = -3 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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