7n^2-14n+54=-5

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Solution for 7n^2-14n+54=-5 equation:


Simplifying
7n2 + -14n + 54 = -5

Reorder the terms:
54 + -14n + 7n2 = -5

Solving
54 + -14n + 7n2 = -5

Solving for variable 'n'.

Reorder the terms:
54 + 5 + -14n + 7n2 = -5 + 5

Combine like terms: 54 + 5 = 59
59 + -14n + 7n2 = -5 + 5

Combine like terms: -5 + 5 = 0
59 + -14n + 7n2 = 0

Begin completing the square.  Divide all terms by
7 the coefficient of the squared term: 

Divide each side by '7'.
8.428571429 + -2n + n2 = 0

Move the constant term to the right:

Add '-8.428571429' to each side of the equation.
8.428571429 + -2n + -8.428571429 + n2 = 0 + -8.428571429

Reorder the terms:
8.428571429 + -8.428571429 + -2n + n2 = 0 + -8.428571429

Combine like terms: 8.428571429 + -8.428571429 = 0.000000000
0.000000000 + -2n + n2 = 0 + -8.428571429
-2n + n2 = 0 + -8.428571429

Combine like terms: 0 + -8.428571429 = -8.428571429
-2n + n2 = -8.428571429

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 = -8.428571429 + 1

Reorder the terms:
1 + -2n + n2 = -8.428571429 + 1

Combine like terms: -8.428571429 + 1 = -7.428571429
1 + -2n + n2 = -7.428571429

Factor a perfect square on the left side:
(n + -1)(n + -1) = -7.428571429

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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