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Simplifying
-3k2 + 12 = 0
Reorder the terms:
12 + -3k2 = 0
Solving
12 + -3k2 = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + -3k2 = 0 + -12
Combine like terms: 12 + -12 = 0
0 + -3k2 = 0 + -12
-3k2 = 0 + -12
Combine like terms: 0 + -12 = -12
-3k2 = -12
Divide each side by '-3'.
k2 = 4
Simplifying
k2 = 4
Take the square root of each side:
k = {-2, 2}
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