Question

evaluate the expression when a=3
4a^4

A. 324

B. 48

C. 28

D. 11

Answer 1

plug in 3.

4(3)^4

Answer 2

Can you calculate 4(3)^4?

Answer 3

so that would be... 4*3=12.. 12^4 = 20, 736
im confused..

Answer 4

Remember PEDMAS? Parentheses first, but it is already done, so now exponents. Do exponents first.

After this, next is multiplication and division. Multiply.

Answer 5

So you do 3^4 first then multiple it by 4.

Answer 6

OHH YEA I DIDNT THINK ABOUT THAT. so its 3^4=81, 81*4=324 which is A. thank you.

Answer 7

Welcome!