Math, asked by shrawanirokde, 10 months ago

simplify (5x-7y) cube+(5x+7y) cube​

Answers

Answered by rohitsharma85306
10

Step-by-step explanation:

Hi ,

*************************************

( a - b )³ + ( a + b )³ = 2[ a³ + 3ab² ]

****************************************

Here ,

a = 5x , b = 7y

( 5x - 7y )³ + ( 5x + 7y )³

= 2 [ ( 5x )³ + 3 × 5x × ( 7y )² ]

= 2 [ 125x³ + 15 x × 49y² ]

= 2[ 125 x³ + 735xy² ]

= 250x³ + 1470xy²

I hope this helps you.

: )

pls mark me as brainliast ☺️

Similar questions