The value of (0.96) 3 - (0.1) 3/ [(0.96) 2 + (0.096) + 0.01] is?

(0.96)³ - (0.1)³/ [(0.96)³ + 0.096 + 0.01]
= (0.96)³ - (0.1)³ = (0.96 - 0.1) [(0.96)² + 0.96 x 0.1 + (0.1)²]
[∵ a³ - b³ = (a - b) (a² + ab + b²)]
= (0.96 - 0.1) [(0.96)² + 0.096 + 0.01]/(0.96)² + 0.096 + 0.01
= 0.96 - 0.1 = 0.86