(k²-0,04)/(0,2k²-k³)=(k-0,2)(k+0,2)/(k²(0,2+k))=(k-0,2)/k²
k=4 => (4-0,2)/4² = 3,6/16 = 0,2375 ≈ 0,2
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(k²-0,04)/(0,2k²-k³)=(k-0,2)(k+0,2)/(k²(0,2+k))=(k-0,2)/k²
k=4 => (4-0,2)/4² = 3,6/16 = 0,2375 ≈ 0,2