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Simplifying
2k2 + -18 = 0
Reorder the terms:
-18 + 2k2 = 0
Solving
-18 + 2k2 = 0
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '18' to each side of the equation.
-18 + 18 + 2k2 = 0 + 18
Combine like terms: -18 + 18 = 0
0 + 2k2 = 0 + 18
2k2 = 0 + 18
Combine like terms: 0 + 18 = 18
2k2 = 18
Divide each side by '2'.
k2 = 9
Simplifying
k2 = 9
Take the square root of each side:
k = {-3, 3}
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