27x³ +58x²y +31xy² +8y³ =27x³ +54x²y + 4x²y +36xy²-5 xy² +8y³ =(3x+2y) ³ +4x²y -5 xy² =[3×4+2×(-6)]³ + 4×16×(-6)-5×4×36 =0-384-720 = -1104
1885 ÷ 64.98 + 7.29 + ? = 69.09
√ (96 + 1000 + 3000) = ?
12.5% of 384 - 16.66% of 66 = √16 + √? + 22
65% of 102 + 14 = ? – 20
12 of 8 - 9 ÷ 3 × 16 - 17 + 6 of 4 - 15
x= √(4 × ∛(16 × √(4 × ∛(16 ×…… ∝)) ) )
324² × 36 ÷ 18⁵ × 1120 =?
(2500 ÷ √625) × √(42.25) = ? ÷ 4
192.251 + 326.233 + 125.021 + 19.273 = ?
74% of 2840 + 80% of 1640 - ?= 47²
