n^2-4n+8=-10

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


Simplifying
n2 + -4n + 8 = -10

Reorder the terms:
8 + -4n + n2 = -10

Solving
8 + -4n + n2 = -10

Solving for variable 'n'.

Reorder the terms:
8 + 10 + -4n + n2 = -10 + 10

Combine like terms: 8 + 10 = 18
18 + -4n + n2 = -10 + 10

Combine like terms: -10 + 10 = 0
18 + -4n + n2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-18' to each side of the equation.
18 + -4n + -18 + n2 = 0 + -18

Reorder the terms:
18 + -18 + -4n + n2 = 0 + -18

Combine like terms: 18 + -18 = 0
0 + -4n + n2 = 0 + -18
-4n + n2 = 0 + -18

Combine like terms: 0 + -18 = -18
-4n + n2 = -18

The n term is -4n.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4n + 4 + n2 = -18 + 4

Reorder the terms:
4 + -4n + n2 = -18 + 4

Combine like terms: -18 + 4 = -14
4 + -4n + n2 = -14

Factor a perfect square on the left side:
(n + -2)(n + -2) = -14

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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