7n^2+14n+20=6

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Solution for 7n^2+14n+20=6 equation:


Simplifying
7n2 + 14n + 20 = 6

Reorder the terms:
20 + 14n + 7n2 = 6

Solving
20 + 14n + 7n2 = 6

Solving for variable 'n'.

Reorder the terms:
20 + -6 + 14n + 7n2 = 6 + -6

Combine like terms: 20 + -6 = 14
14 + 14n + 7n2 = 6 + -6

Combine like terms: 6 + -6 = 0
14 + 14n + 7n2 = 0

Factor out the Greatest Common Factor (GCF), '7'.
7(2 + 2n + n2) = 0

Ignore the factor 7.

Subproblem 1

Set the factor '(2 + 2n + n2)' equal to zero and attempt to solve: Simplifying 2 + 2n + n2 = 0 Solving 2 + 2n + n2 = 0 Begin completing the square. Move the constant term to the right: Add '-2' to each side of the equation. 2 + 2n + -2 + n2 = 0 + -2 Reorder the terms: 2 + -2 + 2n + n2 = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 2n + n2 = 0 + -2 2n + n2 = 0 + -2 Combine like terms: 0 + -2 = -2 2n + n2 = -2 The n term is 2n. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2n + 1 + n2 = -2 + 1 Reorder the terms: 1 + 2n + n2 = -2 + 1 Combine like terms: -2 + 1 = -1 1 + 2n + n2 = -1 Factor a perfect square on the left side: (n + 1)(n + 1) = -1 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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