Question

Answer please.....................

Answer 1

We Know, when numbers with same bases are added the sum ' base will be equal but the powers will added,

so keep bases same in all brackets and solve,

3(7^204+202+200)+7(3^204+202+200)/10

3(7^606) + 7(3^606)/10

21^606+21^606/10

21^606+606/10

21^1212/10

2.1^1212,,