8n^2-n+7=-3

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Solution for 8n^2-n+7=-3 equation:


Simplifying
8n2 + -1n + 7 = -3

Reorder the terms:
7 + -1n + 8n2 = -3

Solving
7 + -1n + 8n2 = -3

Solving for variable 'n'.

Reorder the terms:
7 + 3 + -1n + 8n2 = -3 + 3

Combine like terms: 7 + 3 = 10
10 + -1n + 8n2 = -3 + 3

Combine like terms: -3 + 3 = 0
10 + -1n + 8n2 = 0

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

Divide each side by '8'.
1.25 + -0.125n + n2 = 0

Move the constant term to the right:

Add '-1.25' to each side of the equation.
1.25 + -0.125n + -1.25 + n2 = 0 + -1.25

Reorder the terms:
1.25 + -1.25 + -0.125n + n2 = 0 + -1.25

Combine like terms: 1.25 + -1.25 = 0.00
0.00 + -0.125n + n2 = 0 + -1.25
-0.125n + n2 = 0 + -1.25

Combine like terms: 0 + -1.25 = -1.25
-0.125n + n2 = -1.25

The n term is -0.125n.  Take half its coefficient (-0.0625).
Square it (0.00390625) and add it to both sides.

Add '0.00390625' to each side of the equation.
-0.125n + 0.00390625 + n2 = -1.25 + 0.00390625

Reorder the terms:
0.00390625 + -0.125n + n2 = -1.25 + 0.00390625

Combine like terms: -1.25 + 0.00390625 = -1.24609375
0.00390625 + -0.125n + n2 = -1.24609375

Factor a perfect square on the left side:
(n + -0.0625)(n + -0.0625) = -1.24609375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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