Question

x^x = 16
How to solve this equation?

Answer 1

take ln on both sides:
Ln(x^x) = Ln(16)

Answer 2

Using Ln properties:
x*Ln(x) = 4*Ln(2)

Answer 3

hmm that's ugly..

Answer 4

sarkar probably has an idea.. cuz im out of them for now.

Answer 5

false sarkar, 4^4 != 16

Answer 6

neither is (-4)^(-4)

Answer 7

sarkar, according to your answer, 16=256.... *facepalm*

Answer 8

sorry for the error misinterpreted the question

Answer 9

x^x means x to the power x, x times x means x*x

Answer 10

4 times 4 is 16, 4 to the power of 4 is 256? anyone? or am I like totally wrong?

Answer 11

you are correct bahrom7893

Answer 12

i think result equals a dirty number.

Answer 13

yay! okay, let's ask wolf what it thinks..

Answer 14

http://www.wolframalpha.com/input/?i=Solve%28x^x%3D16%2Cx%29
So x = 2.7453...

Answer 15

Yeah but how would you get that dirty number?

Answer 16

good question ishaan, so u get a good answer

Answer 17

nooo he is wrong no offense
4^4 is 256

Answer 18

the answer is 2^4

Answer 19

2^4=16 because when you have an exponent you have to multiply the base number (2) by the eponent(4) so it would be like this... 2x2x2x2= 16

Answer 20

astrid are you nice :D is X is 2 or 4 ?

Answer 21

I am convinced by Luis Rivera's reply

Answer 22

alright well i gave it to you the easy way, also we have different ways of solving so that means you have a chance to choose, n no problem good luck

Answer 23

astrid farnsworth i like you : )

Answer 24

astrid, x^x is not 2^4.... *another facepalm*

Answer 25

2 is not equal to 4.