Question

Evaluate by using identity (23)^3

Answer 1

Answer:

23×23×23=12,167

HOPE IT HELPS

Answer 2

†Given⇒

(23)^3

†To Evaluate:-

(23)^3 using identity.

★Solution:-

23 = 20+3.

(23)^3 = (20+3)^3.

We know that,

(a+b)³ = a³+b³+3ab(a+b)

Using this identity,

(20+3)³ = 20³ + 3³ + 3 × 20 × 3( 20 + 3)

(20+3)³ = 8000 + 27 + 180 ( 23)

(20+3)³ = 8027 + 4140

(20+3)³ = 12167

Hope it helps