√15≈3.9,
√80≈8.9,
√6.3≈√6.4≈0.8,
√50≈√49≈7,
√11≈3.3,
√2≈1.4,
√3≈1.7,
√5≈2.2,
√7≈2.6,
√8≈2.8,
√ (5 ∙ 6 ^ 2)-√75=√180-√75≈13.1,
-15 ∙ √24 + 6√50=-15*2√6+6√50=-30√6+6√50≈6*7.1-30*2.4≈-29.4,
√18 + 4√72=3√2+4√(9*8)=3√2+12√8≈3*1.4+12*2.8≈4.2+33.6≈37.8
√15≈3.9,
√80≈8.9,
√6.3≈√6.4≈0.8,
√50≈√49≈7,
√11≈3.3,
√2≈1.4,
√3≈1.7,
√5≈2.2,
√7≈2.6,
√8≈2.8,
√ (5 ∙ 6 ^ 2)-√75=√180-√75≈13.1,
-15 ∙ √24 + 6√50=-15*2√6+6√50=-30√6+6√50≈6*7.1-30*2.4≈-29.4,
√18 + 4√72=3√2+4√(9*8)=3√2+12√8≈3*1.4+12*2.8≈4.2+33.6≈37.8