Question

(92)
$(92)3$
​

Answer 1

$\bigstar$ Correct Question:

• Find the value of (92)³ using suitable identity.

$\bigstar$ To find:

• The value of (92)³ using suitable identity.

$\bigstar$ Solution:

Here, we will use :

( a + b )³ = a³ + 3a²b + 3ab² + b³

So,

( 90 + 2 )³

= (90)³ + 3(90)²(2) +3(90)(2)² + (2)³

= 7,29,000 + 48,600 + 1,080 + 8

= $\boxed{7,78,688}$

$\bigstar$ Answer:

$\therefore$ answer is $\boxed{7,78,688}$ using

(a + b)³ = a³ + 3a²b + 3ab² + b³

$\circ$ Formula used:

• (a + b)³ = a³ + 3a²b + 3ab² + b³