-6n^2-18n-18=6

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Solution for -6n^2-18n-18=6 equation:


Simplifying
-6n2 + -18n + -18 = 6

Reorder the terms:
-18 + -18n + -6n2 = 6

Solving
-18 + -18n + -6n2 = 6

Solving for variable 'n'.

Reorder the terms:
-18 + -6 + -18n + -6n2 = 6 + -6

Combine like terms: -18 + -6 = -24
-24 + -18n + -6n2 = 6 + -6

Combine like terms: 6 + -6 = 0
-24 + -18n + -6n2 = 0

Factor out the Greatest Common Factor (GCF), '-6'.
-6(4 + 3n + n2) = 0

Ignore the factor -6.

Subproblem 1

Set the factor '(4 + 3n + n2)' equal to zero and attempt to solve: Simplifying 4 + 3n + n2 = 0 Solving 4 + 3n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '-4' to each side of the equation. 4 + 3n + -4 + n2 = 0 + -4 Reorder the terms: 4 + -4 + 3n + n2 = 0 + -4 Combine like terms: 4 + -4 = 0 0 + 3n + n2 = 0 + -4 3n + n2 = 0 + -4 Combine like terms: 0 + -4 = -4 3n + n2 = -4 The n term is 3n. Take half its coefficient (1.5). Square it (2.25) and add it to both sides. Add '2.25' to each side of the equation. 3n + 2.25 + n2 = -4 + 2.25 Reorder the terms: 2.25 + 3n + n2 = -4 + 2.25 Combine like terms: -4 + 2.25 = -1.75 2.25 + 3n + n2 = -1.75 Factor a perfect square on the left side: (n + 1.5)(n + 1.5) = -1.75 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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