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2+0.1Q-0.15Q²=0
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2+0.1Q-0.15Q²=0
0.15Q²-0.1Q-2=0
15/100Q²-1/10Q-2=0
15Q²-10Q-200=0
3Q²-2Q-40=0
Q=(2+√(4+480))/6 Q=(2-√(4+480))/6
Q=(2+√484)/6 Q=(2-√484)/6
Q=(2+22)/6 Q=(2-22)/6
Q=4 Q=(-10/3)
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