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Simplifying
5k2 + 3 = 18
Reorder the terms:
3 + 5k2 = 18
Solving
3 + 5k2 = 18
Solving for variable 'k'.
Move all terms containing k to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + 5k2 = 18 + -3
Combine like terms: 3 + -3 = 0
0 + 5k2 = 18 + -3
5k2 = 18 + -3
Combine like terms: 18 + -3 = 15
5k2 = 15
Divide each side by '5'.
k2 = 3
Simplifying
k2 = 3
Take the square root of each side:
k = {-1.732050808, 1.732050808}
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