Thread:ItsZeryn/@comment-38303482-20190414000902/@comment-38227745-20190414002637

①288² =(300–12)² =90k-7k-200+144 =83k-56 =82,944 ②17²=289 288=(17-Δ)²=289–34Δ+Δ² Hence , 34Δ≈1 Δ≈(100/34)÷100 ≈2.941/100 ≈0.02941... HENCE , √288≈17.00–0.0294≈16.9706