7-2n=8n(-4n)

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Solution for 7-2n=8n(-4n) equation:


Simplifying
7 + -2n = 8n(-4n)

Remove parenthesis around (-4n)
7 + -2n = 8n * -4n

Reorder the terms for easier multiplication:
7 + -2n = 8 * -4n * n

Multiply 8 * -4
7 + -2n = -32n * n

Multiply n * n
7 + -2n = -32n2

Solving
7 + -2n = -32n2

Solving for variable 'n'.

Combine like terms: -32n2 + 32n2 = 0
7 + -2n + 32n2 = 0

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

Divide each side by '32'.
0.21875 + -0.0625n + n2 = 0

Move the constant term to the right:

Add '-0.21875' to each side of the equation.
0.21875 + -0.0625n + -0.21875 + n2 = 0 + -0.21875

Reorder the terms:
0.21875 + -0.21875 + -0.0625n + n2 = 0 + -0.21875

Combine like terms: 0.21875 + -0.21875 = 0.00000
0.00000 + -0.0625n + n2 = 0 + -0.21875
-0.0625n + n2 = 0 + -0.21875

Combine like terms: 0 + -0.21875 = -0.21875
-0.0625n + n2 = -0.21875

The n term is -0.0625n.  Take half its coefficient (-0.03125).
Square it (0.0009765625) and add it to both sides.

Add '0.0009765625' to each side of the equation.
-0.0625n + 0.0009765625 + n2 = -0.21875 + 0.0009765625

Reorder the terms:
0.0009765625 + -0.0625n + n2 = -0.21875 + 0.0009765625

Combine like terms: -0.21875 + 0.0009765625 = -0.2177734375
0.0009765625 + -0.0625n + n2 = -0.2177734375

Factor a perfect square on the left side:
(n + -0.03125)(n + -0.03125) = -0.2177734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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