Question

There are (2^4)^2 multiply 20 books in the cupboard. What is the total number of books in the cupboard?

Answer 1

add, use a calculator

Answer 2

when you add we can write in scientific notation

Answer 3

whoa the question changed or am i crazy?

Answer 4

You mean this?
\((2^4)^2 \times 20\)

Answer 5

correct

Answer 6

Start working from inside the parentheses.
What is \(2^4\)?

Answer 7

2x2x2x2 right?

Answer 8

16

Answer 9

Yes.
Now the next step.
What is \(16^2\) ?

Answer 10

16x16 = 256

Answer 11

Great.
Now you can finish with:
\(256 \times 20\)

Answer 12

256 x 20 = 5120

Answer 13

I think were doing this wrong

Answer 14

Correct.
The way a problem like this should be done is by doing it one step at a time like we did, and copying everything down each step. This way you don't forget any of the steps or operations.
See below.

Answer 15

what about the exponents I cant just multiply smoothly like that because it gives me an answer that has nothing to do with my options

Answer 16

\((2^4)^2 \times 20\)

\(= 16^2 \times 20\)

\(= 256 \times 20\)

\(= 5120\)

Answer 17

the way I should of done it is to keep my base and add the exponents

Answer 18

We solved together the problem you posted. Perhaps you did not copy the problem correctly. Can you post a pic of the problem or use the draw tool to hand write the exact problem?

Answer 19

I copy and paste the whole entire question maybe I should do the same for my options no offence though. :)

Answer 20

You add exponents when you multiply two powers with the same base.

Answer 21

I did ask you above if I was interpreting the problem correctly, and you said yes.

Answer 22

ill copy the question again

Answer 23

Some symbols cannot be simply cut and pasted.

Answer 24

I solved the problem myself thank you for the help though :)