Asked by Rayan
What is the entire radial form of -3* cube root of 2?
I go cube root of 54 as my answer but it is wrong
I go cube root of 54 as my answer but it is wrong
Answers
Answered by
Reiny
-3* cube root of 2 is a negative number, so your result has to stay negative.
change it to
- cuberoot(54)
change it to
- cuberoot(54)
Answered by
Rayan
isn't negative not supposed to go inside the cube root
Answered by
Rayan
I have one more question
I tried this question but got the wrong answer...
3-x= √x^2-5
(The square root is over whole x^2-5)
My answer was x=2/3
I tried this question but got the wrong answer...
3-x= √x^2-5
(The square root is over whole x^2-5)
My answer was x=2/3
Answered by
Scott
squaring ... 9 - 6x + x² = x² - 5
x = 7/3
x = 7/3
Answered by
Steve
yes -∛54 = ∛-54
Did you try your answer for the other one??
(2/3)^2-5 is negative.
so its square root is not real
3-x = √(x^2-5)
9-6x+x^2 = x^2-5
6x = 14
x = 7/3
Let's try 7/3
3 - 7/3 = 2/3
√(49/9-5) = √4/9 = 2/3
Check the graphs at
http://www.wolframalpha.com/input/?i=plot+y%3D3-x,+y%3D%E2%88%9A(x%5E2-5)
Did you try your answer for the other one??
(2/3)^2-5 is negative.
so its square root is not real
3-x = √(x^2-5)
9-6x+x^2 = x^2-5
6x = 14
x = 7/3
Let's try 7/3
3 - 7/3 = 2/3
√(49/9-5) = √4/9 = 2/3
Check the graphs at
http://www.wolframalpha.com/input/?i=plot+y%3D3-x,+y%3D%E2%88%9A(x%5E2-5)
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.