Math, asked by dikshadhyani28, 1 year ago

plzzz tell theee answer its urgent

Attachments:

Answers

Answered by Anonymous
1
Hello dear

====================================

we need a formula which is

( a + b )² = a² + b² + 3ab ( a + b )

now

given

( 99 )³

= ( 90 + 9 )³

= ( 90 )³ + ( 9 )³ + 3 ( 90 ) ( 9 ) { 90 + 9 }

= 729000 + 729 + 2430 ( 99 )

= 729000 + 729 + 240570

= 970299

thanks

====================================

Similar questions