Hey!___________(9.9)^3(9 + 0.9)^3Using identity - ( a + b )^3 = a^3 + b^3 + 3AB (a + b) Now, a = 9 , b = 0.9(9)^3 + (0.9)^3 + 3 × 9 × 0.9 ( 9 + 0.9)= 729 + 0.729 + 24.3 ( 9.9 )= 729 + 0.729 + 240.57= 970.299___________Hope it helps...!!!
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