k^2=12k-45

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Solution for k^2=12k-45 equation:


Simplifying
k2 = 12k + -45

Reorder the terms:
k2 = -45 + 12k

Solving
k2 = -45 + 12k

Solving for variable 'k'.

Reorder the terms:
45 + -12k + k2 = -45 + 12k + 45 + -12k

Reorder the terms:
45 + -12k + k2 = -45 + 45 + 12k + -12k

Combine like terms: -45 + 45 = 0
45 + -12k + k2 = 0 + 12k + -12k
45 + -12k + k2 = 12k + -12k

Combine like terms: 12k + -12k = 0
45 + -12k + k2 = 0

Begin completing the square.

Move the constant term to the right:

Add '-45' to each side of the equation.
45 + -12k + -45 + k2 = 0 + -45

Reorder the terms:
45 + -45 + -12k + k2 = 0 + -45

Combine like terms: 45 + -45 = 0
0 + -12k + k2 = 0 + -45
-12k + k2 = 0 + -45

Combine like terms: 0 + -45 = -45
-12k + k2 = -45

The k term is -12k.  Take half its coefficient (-6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
-12k + 36 + k2 = -45 + 36

Reorder the terms:
36 + -12k + k2 = -45 + 36

Combine like terms: -45 + 36 = -9
36 + -12k + k2 = -9

Factor a perfect square on the left side:
(k + -6)(k + -6) = -9

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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