Tutors Answer Your Questions about Radicals (FREE)
Question 436856: Solve the equation by completing the square.
y^2+2y+26=0
(Simplify your answer. Type an exact answer using radicals as needed. Express complex numbers in terms of i. Use a comma to separate answers as needed)
Click here to see answer by stanbon(57224) |
Question 437355: Hi, I need help solving radical equations. I tried one and got nowhere and did a second one and came up to the same thing.
Here is the first on that I didn't understand.
(x^(3/2)-3x^(1/2)=0
And here is the second one.
(x^(1/2)-2x^(1/4)+1=0
Any help would be great. One more question. Do you know of a link to a page where I could read more on these type of radical equations that deal with fractions? Thanks for all your help!
Click here to see answer by Gogonati(809)  |
Question 437355: Hi, I need help solving radical equations. I tried one and got nowhere and did a second one and came up to the same thing.
Here is the first on that I didn't understand.
(x^(3/2)-3x^(1/2)=0
And here is the second one.
(x^(1/2)-2x^(1/4)+1=0
Any help would be great. One more question. Do you know of a link to a page where I could read more on these type of radical equations that deal with fractions? Thanks for all your help!
Click here to see answer by solver91311(16868)  |
Question 437637: I'm having a really hard time figuring out problems with, the cubed root?
For example.. one of my homework questions says: Add and Subtract
∛2x+∛16x+∛128x-5∛2x
one answer I came up with was 2∛2x
another answer I came up with was 12∛2x
But i'm very confused and I don't know if either one is right
Click here to see answer by stanbon(57224) |
Question 438805: Simplify by taking roots of the numerator and the denominator. Expressions under radicals are positive numbers. The expression is: ∛((8x^11)/y^3 )
I did arrive at a solution, but am unsure of the exponential value of x under the radical sign. My solution was: (2x^3 ∛(x^3 ))/y
Click here to see answer by lwsshak3(6463) |
Question 439831: sqrt(x-3) + sqrt (x+5) = 4 Isolating one radical
(sqrt x-3)^2 = (4 - sqrt(x+5))^2 Using the principle of powers - squaring both sides
x - 3 = 16 - 8 (sqrt (x+5)) + (x+5)
What I would like to know is where does the 8 come from?
Click here to see answer by Gogonati(809)  |
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