Question

упростить выражение 

-5ab^2(7a^3)^2

Answer 1

- 5AB^2 * 49 A^6 = - 245*A^7*B^2

Answer 2

$-5ab^2(7a^3)^2=-5ab^27^2a^6=-5ab^249a^6=-245a^7b^2$