5n^2+11=9n

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Solution for 5n^2+11=9n equation:


Simplifying
5n2 + 11 = 9n

Reorder the terms:
11 + 5n2 = 9n

Solving
11 + 5n2 = 9n

Solving for variable 'n'.

Reorder the terms:
11 + -9n + 5n2 = 9n + -9n

Combine like terms: 9n + -9n = 0
11 + -9n + 5n2 = 0

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

Divide each side by '5'.
2.2 + -1.8n + n2 = 0

Move the constant term to the right:

Add '-2.2' to each side of the equation.
2.2 + -1.8n + -2.2 + n2 = 0 + -2.2

Reorder the terms:
2.2 + -2.2 + -1.8n + n2 = 0 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + -1.8n + n2 = 0 + -2.2
-1.8n + n2 = 0 + -2.2

Combine like terms: 0 + -2.2 = -2.2
-1.8n + n2 = -2.2

The n term is -1.8n.  Take half its coefficient (-0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
-1.8n + 0.81 + n2 = -2.2 + 0.81

Reorder the terms:
0.81 + -1.8n + n2 = -2.2 + 0.81

Combine like terms: -2.2 + 0.81 = -1.39
0.81 + -1.8n + n2 = -1.39

Factor a perfect square on the left side:
(n + -0.9)(n + -0.9) = -1.39

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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