Question

can someone teach me how to find X in here: x^3 = 125

Answer 1

Do you know how to find the prime factors of a number?

Answer 2

no

Answer 3

Do you know what a prime number is?

Answer 4

like sqrt you mean? i know that, and i know cube root but i just want to know how to do it on a calculator

Answer 5

A prime number is a number that can only be divided by 1 and itself

Answer 6

2 is the only even prime number

Answer 7

Here we want the factors of 125

Answer 8

Prime numbers 1,3,5,7,11,13,17,19,23,29 etc
What is the lowest that can divide into 125 ?

Answer 9

Do you see that 125 = 5*5*5?

Answer 10

X^3=5^3

Answer 11

yes

Answer 12

so its 5^3

Answer 13

This is simple enough to see x = 5. But to continue the process on the left you have x^3 so to get x you would take the cube root
For an equation whatever you do to one side also do to the other so take the cube root of 125 which is 5.

Answer 14

I showed the prime factorization so you can do without a calculator. You would group by 2's for square root, 3's for cube root etc

Answer 15

Any questions?

Answer 16

all i ever wanted to know is how to find cube root in my calc

Answer 17

Cube root is to the power 1/3

Answer 18

so it would have been 1/3 of 125?

Answer 19

3*(1/3) = 1

Answer 20

calculated industries scientific calculator

Answer 21

No not 1/3 of 125
It would be 125 raised to the power 1/3

Answer 22

no

Answer 23

put 125^(1/3)=

Answer 24

41.6

Answer 25

The ^ is most of the time a 2nd function key

Answer 26

there is one. that is like X^?

Answer 27

it gives me 41.666666666666666666666666666667

Answer 28

I DID IT GAVE ME 41.666666666666666666666666666667

Answer 29

Use the parenthesis or put 0.33.
Order of operations is still important

Answer 30

OOH IT WORKED NOW i got 5

Answer 31

You are welcome

Answer 32

thank you