Algebra question that I cant find the answer to.

Hvordan kan vi hjælpe?

bradka79

12. maj 2018 04:46

Solve the following expression for y

y^(1/3)=x+3

I was not sure if the answer is

A) y = (x+3)^3

B) y = x^3 + 3^3

I purposely left them unfactored for the sake of the question, that is, to illustrate the correct rule, because they both will yield different answers.

Nyt opslag

5 kommentarer

Admiral Betasin

12. maj 2018 19:39
1

Kommentarhandlinger Permalink
It might help to remember that y^(1/3) is equal to cube root of y.

Here are the steps for how to solve the given equation:

Start with your original equation:
y^(1/3)=x+3

Cube both sides:
y = (x + 3)^3

And that's it.
bradka79

12. maj 2018 23:35
0

Kommentarhandlinger Permalink
Thank you!
Admiral Betasin

12. maj 2018 23:42
0

Kommentarhandlinger Permalink
No problem.

Feel free to ask me if you have any other questions in mind.
Moataz Gobara

20. maj 2018 23:07
0

Kommentarhandlinger Permalink
I AM NOT SURE HOW TO READ THE TERM Y^ . HOW TO SAY IT IN ENGLISH?
Admiral Betasin

21. maj 2018 02:28

Redigeret
0

Kommentarhandlinger Permalink
You would read it as "Y [as the letter] squared."

Opslag er lukket for kommentarer.

Algebra question that I cant find the answer to.

Fandt du ikke det, du ledte efter?

5 kommentarer

Fandt du ikke det, du ledte efter?