Respuesta :
The first one simplifies to 81a^4b
Sorry, I cannot solve the second one without placement of parentheses on the exponents
Sorry, I cannot solve the second one without placement of parentheses on the exponents
none of the answers make any sense to me I wrote it on paper I used a calculator and got answers completely different from the answer options given sorry I cannot help, but this is a part of my math that is not the best.