2n(9n-1)+7(n+6)=-60

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Solution for 2n(9n-1)+7(n+6)=-60 equation:


Simplifying
2n(9n + -1) + 7(n + 6) = -60

Reorder the terms:
2n(-1 + 9n) + 7(n + 6) = -60
(-1 * 2n + 9n * 2n) + 7(n + 6) = -60
(-2n + 18n2) + 7(n + 6) = -60

Reorder the terms:
-2n + 18n2 + 7(6 + n) = -60
-2n + 18n2 + (6 * 7 + n * 7) = -60
-2n + 18n2 + (42 + 7n) = -60

Reorder the terms:
42 + -2n + 7n + 18n2 = -60

Combine like terms: -2n + 7n = 5n
42 + 5n + 18n2 = -60

Solving
42 + 5n + 18n2 = -60

Solving for variable 'n'.

Reorder the terms:
42 + 60 + 5n + 18n2 = -60 + 60

Combine like terms: 42 + 60 = 102
102 + 5n + 18n2 = -60 + 60

Combine like terms: -60 + 60 = 0
102 + 5n + 18n2 = 0

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

Divide each side by '18'.
5.666666667 + 0.2777777778n + n2 = 0

Move the constant term to the right:

Add '-5.666666667' to each side of the equation.
5.666666667 + 0.2777777778n + -5.666666667 + n2 = 0 + -5.666666667

Reorder the terms:
5.666666667 + -5.666666667 + 0.2777777778n + n2 = 0 + -5.666666667

Combine like terms: 5.666666667 + -5.666666667 = 0.000000000
0.000000000 + 0.2777777778n + n2 = 0 + -5.666666667
0.2777777778n + n2 = 0 + -5.666666667

Combine like terms: 0 + -5.666666667 = -5.666666667
0.2777777778n + n2 = -5.666666667

The n term is 0.2777777778n.  Take half its coefficient (0.1388888889).
Square it (0.01929012346) and add it to both sides.

Add '0.01929012346' to each side of the equation.
0.2777777778n + 0.01929012346 + n2 = -5.666666667 + 0.01929012346

Reorder the terms:
0.01929012346 + 0.2777777778n + n2 = -5.666666667 + 0.01929012346

Combine like terms: -5.666666667 + 0.01929012346 = -5.64737654354
0.01929012346 + 0.2777777778n + n2 = -5.64737654354

Factor a perfect square on the left side:
(n + 0.1388888889)(n + 0.1388888889) = -5.64737654354

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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