2k^2+19=4k

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Solution for 2k^2+19=4k equation:


Simplifying
2k2 + 19 = 4k

Reorder the terms:
19 + 2k2 = 4k

Solving
19 + 2k2 = 4k

Solving for variable 'k'.

Reorder the terms:
19 + -4k + 2k2 = 4k + -4k

Combine like terms: 4k + -4k = 0
19 + -4k + 2k2 = 0

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

Divide each side by '2'.
9.5 + -2k + k2 = 0

Move the constant term to the right:

Add '-9.5' to each side of the equation.
9.5 + -2k + -9.5 + k2 = 0 + -9.5

Reorder the terms:
9.5 + -9.5 + -2k + k2 = 0 + -9.5

Combine like terms: 9.5 + -9.5 = 0.0
0.0 + -2k + k2 = 0 + -9.5
-2k + k2 = 0 + -9.5

Combine like terms: 0 + -9.5 = -9.5
-2k + k2 = -9.5

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 = -9.5 + 1

Reorder the terms:
1 + -2k + k2 = -9.5 + 1

Combine like terms: -9.5 + 1 = -8.5
1 + -2k + k2 = -8.5

Factor a perfect square on the left side:
(k + -1)(k + -1) = -8.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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