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9k^2=-144
We move all terms to the left:
9k^2-(-144)=0
We add all the numbers together, and all the variables
9k^2+144=0
a = 9; b = 0; c = +144;
Δ = b2-4ac
Δ = 02-4·9·144
Δ = -5184
Delta is less than zero, so there is no solution for the equation
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