Question

please answer this question given in picture...

the person who answers step by step and in detail will be marked as brainlist...​

Answer 1

Answer:

7 x 11^ 5

Step-by-step explanation:

3 x 7^2 x 11 ^8/21 x 11 ^3

= 3 x 7 x7 x 11 ^8/ 3 x 7 x 11^3                    [21=3 x 7 }

= 7 x 11^8/ 11^ 3                                           [cancelling 3 x 7]

=7 x 11^5                                                      [while cancelling exponents 11^8/11&3

                                                                    =11^8-^3 = 11^5]