Question

what is equivalent to the expression below. select all that apply.
3^4*3^x
A. 3^(4-x)
B. 81*(3^x)
C. (3*x)^4
D. 3^(4x)
E. 3^(4+x)
F. 9^(4x)

Answer 1

actually

Answer 2

since the base of the exponents are the same, do you remember what you can do with that fact?

Answer 3

81

Answer 4

so B is an answer

Answer 5

then.... what else

Answer 6

if you have two bases that are the same:

a^2 + a^2,

then you can add the exponents to get:

a^(2+2)

Answer 7

so B is an answer and so is E

Answer 8

oops I forgot-sorry it was on the very bottom of my notes

Answer 9

so yes E is also an answer

Answer 10

is that it though?

Answer 11

yes, none of the other ones work

Answer 12

omg! did really bad on a few of thse questions so can u help me w/ like a few more questions pls??

Answer 13

ok

Answer 14

ok i'll post it now

Answer 15

which are equivalent below,. select all that apply.
9^x
A. 9*(9^(x-1))
B. (36/4)^x
C. 9*(9^(x+1))
D. (36^x)/4
E. 36^x/4^x
F. x^5

Answer 16

ok so I know that B & E will work

Answer 17

but im not sure abt the others

Answer 18

A works as well

Answer 19

ok so A, B & E ?

Answer 20

but how is A though?

Answer 21

9 * 9^(x - 1) = 9 * 1/9 * 9^x

Answer 22

9 and 1/9 cancel out to equal 1, and 1 * 9^x = 9^x

Answer 23

9^(-1) = 1/9

Answer 24

ok the next one is the same type of problem w/ same intructions

Answer 25

ok

Answer 26

question: 2^5*2^x
A. 2^(5x)
B. 4^(5x)
C. 2^(5-x)
D. (2*x)^5
E. 2^(5+x)
F. 32*(2^x)

Answer 27

2^5 is 32 so F will work.
2^(5+x) will also work (same bases mead we can add the exponents.
none of the others work

Answer 28

yeah I had F

Answer 29

wait E also works too

Answer 30

so E & F

Answer 31

yes

Answer 32

next question: 16^x
A. 4*(4^x)
B. 4*(4^2x)
C. 4^2*4^x
D. 4^(2x)
E. 4^x*4^x
F. (4*4)^x

Answer 33

I know E & F works

Answer 34

is that it? that's all I could find

Answer 35

d works

Answer 36

4^(2x)?? how?

Answer 37

4^(2x) = 4^2*4^x which is the same as E

Answer 38

wait no it's not

Answer 39

yea.... cuz then they'd have to add together not multiply

Answer 40

wait

Answer 41

ok

Answer 42

it might be a good idea to get a second opinion because im not sure actually

Answer 43

ok..

Answer 44

just post the question

Answer 45

i'm gonna close this question and put the one we were discussing

Answer 46

kk