8n^2+11n-2=-12

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Solution for 8n^2+11n-2=-12 equation:


Simplifying
8n2 + 11n + -2 = -12

Reorder the terms:
-2 + 11n + 8n2 = -12

Solving
-2 + 11n + 8n2 = -12

Solving for variable 'n'.

Reorder the terms:
-2 + 12 + 11n + 8n2 = -12 + 12

Combine like terms: -2 + 12 = 10
10 + 11n + 8n2 = -12 + 12

Combine like terms: -12 + 12 = 0
10 + 11n + 8n2 = 0

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

Divide each side by '8'.
1.25 + 1.375n + n2 = 0

Move the constant term to the right:

Add '-1.25' to each side of the equation.
1.25 + 1.375n + -1.25 + n2 = 0 + -1.25

Reorder the terms:
1.25 + -1.25 + 1.375n + n2 = 0 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + 1.375n + n2 = 0 + -1.25
1.375n + n2 = 0 + -1.25

Combine like terms: 0 + -1.25 = -1.25
1.375n + n2 = -1.25

The n term is 1.375n.  Take half its coefficient (0.6875).
Square it (0.47265625) and add it to both sides.

Add '0.47265625' to each side of the equation.
1.375n + 0.47265625 + n2 = -1.25 + 0.47265625

Reorder the terms:
0.47265625 + 1.375n + n2 = -1.25 + 0.47265625

Combine like terms: -1.25 + 0.47265625 = -0.77734375
0.47265625 + 1.375n + n2 = -0.77734375

Factor a perfect square on the left side:
(n + 0.6875)(n + 0.6875) = -0.77734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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