8n^2+4n+2n^2+9n+10=

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Solution for 8n^2+4n+2n^2+9n+10= equation:


Simplifying
8n2 + 4n + 2n2 + 9n + 10 = 0

Reorder the terms:
10 + 4n + 9n + 8n2 + 2n2 = 0

Combine like terms: 4n + 9n = 13n
10 + 13n + 8n2 + 2n2 = 0

Combine like terms: 8n2 + 2n2 = 10n2
10 + 13n + 10n2 = 0

Solving
10 + 13n + 10n2 = 0

Solving for variable 'n'.

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

Divide each side by '10'.
1 + 1.3n + n2 = 0.0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + 1.3n + -1 + n2 = 0.0 + -1

Reorder the terms:
1 + -1 + 1.3n + n2 = 0.0 + -1

Combine like terms: 1 + -1 = 0
0 + 1.3n + n2 = 0.0 + -1
1.3n + n2 = 0.0 + -1

Combine like terms: 0.0 + -1 = -1
1.3n + n2 = -1

The n term is 1.3n.  Take half its coefficient (0.65).
Square it (0.4225) and add it to both sides.

Add '0.4225' to each side of the equation.
1.3n + 0.4225 + n2 = -1 + 0.4225

Reorder the terms:
0.4225 + 1.3n + n2 = -1 + 0.4225

Combine like terms: -1 + 0.4225 = -0.5775
0.4225 + 1.3n + n2 = -0.5775

Factor a perfect square on the left side:
(n + 0.65)(n + 0.65) = -0.5775

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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