Question

Please somebody help with an exponent question

Answer 1

\[9^x = 4\]
What is
\[3^{5x}\]

Answer 2

I got 34 as an answer, is that right?

Answer 3

134x i think

Answer 4

No that is not right...

Answer 5

ok

Answer 6

cammie you're not helping...

Answer 7

well I took 3x3x3x3x3 five times

Answer 8

Well, that is not how you do this problem! @Cammie21

Answer 9

Please, I need someone smart

Answer 10

lol solve for x in \[9^x = 4\] by using logarithms

Answer 11

HELP ME PLEASE!!

Answer 12

What does X equal?

Answer 13

well idc and are u calling me stupid

Answer 14

I need help, urgent

Answer 15

@steve816 do this\[x=\log_{9}(4) \]

Answer 16

SO how does that help???

Answer 17

The question is asking what is 3^5x

Answer 18

it tells you what x's value is

Answer 19

That gives you x, then you multiply x by 5 for the next part and use the new value

Answer 20

what she said ^

Answer 21

how do I get the answer?

Answer 22

I know this is not what you are looking for. but the answer to 9^x=4 is x=0.63093

Answer 23

I would use a calculator, nobody likes logarithms when the exponent is a fraction. And you know it's a fraction because the result is less than the base number but higher than 1. If the result was less than 1, your exponent is also negative

Answer 24

You know what... I give up... this is a no calc question...

Answer 25

How about raising each side to the 5th power? That will turn the ^x into ^5x

Answer 26

You Can Easily Use A Calculator, I Agree With @steve816

Answer 27

No I mean if you want to not use a calculator, do it the way I just said

Answer 28

or just substitute mattga2002's answer for x\[3^{5(0.63093)}\]

Answer 29

(9^x)^5=4^5

Answer 30

and solve

Answer 31

Yes but he is avoiding using a calculator. He should just apply the ^5 to both sides

Answer 32

It's still ugly to solve on paper but it's nicer than a logarithm