Question

evaluate using proper identity: 103^3​

Answer 1

Answer:

(103)³ = (100 + 3)³

(a + b)³ = a³ + b³ + 3 x a² × b + 3 x a x b³

= 100³ + 3 ³ + 3 ×100² × 3 + 3 × 100 × 3²

= 100000 + 27 + 90000 + 2700

= 1092727

Answer 2

Answer:

1092727

Step-by-step explanation:

Given : (103)³

We can also write this as :

(100 + 3)³

Identity : (a + b)³ = a³ + b³ + 3ab(a + b)

Here, a = 100 and b = 3

→ (100)³ + (3)³ + 3(100)(3)(100 + 3)

→ 1000000 + 27 + 92700

→ 1092727