4k^2-8k+16=5

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Solution for 4k^2-8k+16=5 equation:


Simplifying
4k2 + -8k + 16 = 5

Reorder the terms:
16 + -8k + 4k2 = 5

Solving
16 + -8k + 4k2 = 5

Solving for variable 'k'.

Reorder the terms:
16 + -5 + -8k + 4k2 = 5 + -5

Combine like terms: 16 + -5 = 11
11 + -8k + 4k2 = 5 + -5

Combine like terms: 5 + -5 = 0
11 + -8k + 4k2 = 0

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

Divide each side by '4'.
2.75 + -2k + k2 = 0

Move the constant term to the right:

Add '-2.75' to each side of the equation.
2.75 + -2k + -2.75 + k2 = 0 + -2.75

Reorder the terms:
2.75 + -2.75 + -2k + k2 = 0 + -2.75

Combine like terms: 2.75 + -2.75 = 0.00
0.00 + -2k + k2 = 0 + -2.75
-2k + k2 = 0 + -2.75

Combine like terms: 0 + -2.75 = -2.75
-2k + k2 = -2.75

The k term is -2k.  Take half its coefficient (-1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
-2k + 1 + k2 = -2.75 + 1

Reorder the terms:
1 + -2k + k2 = -2.75 + 1

Combine like terms: -2.75 + 1 = -1.75
1 + -2k + k2 = -1.75

Factor a perfect square on the left side:
(k + -1)(k + -1) = -1.75

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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