Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!

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Algebra: Square root, cubic root, N-th root

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Question 23729: In algebra if i have the problem the square root of N is equal to n^2+6n-18, if i am solving is as an equation... how am I suppposed to undo the square root of a variable? (Does it have something to do with the N^2??) Please help me.
Thanks in advance.
Click here to see answer by stanbon(26259)

Question 23914: the problem says write the expression in simplest form. assume all variables are positive... ok i hope i can word this correctly! the 3rd root of x squared times the 4th root of x...i have no idea where to begin
Click here to see answer by longjonsilver(2297)

Question 24017: How do you do these problems? I tried them and i can not get the solutions! (the slash \ means square root. the ` means to the nth power)
1) 3\X = 5 = (3\X)`2 = 5`2
X = 25? that is what i got...
2) \13y-3 = \7y+9
3)\X-5 - 1 = \X
(\X-5)`2 = (\X+1)`2

Click here to see answer by longjonsilver(2297)

Question 24272: Simplify
(2x^3 /(sqaure root of x^3 + 4)) + (5(square root of x^3 + 4))
I just don't know what to do with the square roots when trying to simply
Thanks
Tiffany
P.S. Sorry I didn't know how to type a sqaure root sign so I just wrote it
Click here to see answer by kev82(145)

Question 24397: Square root 8 + Square root 18
Click here to see answer by AnlytcPhil(958)

Question 24595: I am no good with square roots or cubic roots, could you please help me?
a. The square root of x-1=3
b. The square root of 3 cubed=8
c. The cubic root of x squared =4.
For the third one I got x=12
here is my work for c:
cubic root of x squared=4 cubed
x squared=48
x=12
Can you tell me if I did this one right and let me know what I did wrong if not?
THANK YOU THANK YOU THANK YOU!!!!!
Click here to see answer by josmiceli(3003)

Question 24891: can someone please help me with this problem?
The volume of a cube is given by V = s3. Find the length of a side of a cube if the Volume is 729 cm3.
Click here to see answer by elima(1433)

Question 24890: can someone please help me with this problem?
The volume of a cube is given by V = s3. Find the length of a side of a cube if the Volume is 729 cm3.
Click here to see answer by music974(43)

Question 25047: How Do I Solve This Problem???
(n-5)^2=20
Click here to see answer by stanbon(26259)

Question 25053: I was just wondering if I did this problem correct?
simplify: sqrt 9ab4
= sqrt 3*3*a*b*2*2
= sqrt 9, sqrt a, sqrt b, sqrt 4
= 3 sqrt ab2
Click here to see answer by stanbon(26259)

Question 25046: I'm stuck on a problem could someone please help me?
Find the value for"a" if the points are the indicated apart.
(2,a) and (-3,-2)when d=radical sign 34
Click here to see answer by stanbon(26259)

Question 25335: the square root of 121

Click here to see answer by stanbon(26259)

Question 25363: evaluate each expression for: x=-2 y=4 z=3
x3y-2
______
z
Click here to see answer by elima(1433)

Question 25362: how can i get a square root of 17
Click here to see answer by longjonsilver(2297)

Question 25424: simplify: (xy)^(1/4) (x^2y)^(1/2)
Click here to see answer by Earlsdon(4898)

Question 25580: 3 square root of 5 + 9 square root of 5
Click here to see answer by longjonsilver(2297)

Question 26630: Can you help me extract the square root of this problem please
(x-5)^2= 20
Click here to see answer by longjonsilver(2297)

Question 26615: I am having trouble solving the square root problems that are inolving fractions. Could you please help solve this problem.
2/7square root of 147 minus 1/3 square root 27minus square root of 48. thank you in advance for your help.
Click here to see answer by longjonsilver(2297)

Question 26681: I was dumb and didn't take notes in class. Since then, I forgot how to do this problem.. "What is the square root of 3/7?"
Click here to see answer by longjonsilver(2297)

Question 26734: What is the simplified version of this problem
49r6s3 under the square root sign.

Click here to see answer by longjonsilver(2297)

Question 26753: I want to answer this question
Question 26734: What is the simplified version of this problem
49r6s3 under the square root sign.
Ans: 7r2s SQRT s
Click here to see answer by elima(1433)

Question 25234: what is the square root of 64x squared y
thanks, charlie
Click here to see answer by whty89(20)

Question 27121: general condition on n which guarantees that the square root of the nth cube number is a whole number
Click here to see answer by venugopalramana(3286)

Question 27123: Write down an expression for the (n+1)th cube number.
Also write down an expression for the difference between the (n+1)th cube number and the nth cube number
Click here to see answer by venugopalramana(3286)

Question 27139: simplify the expression..
square root of 32 over square root of 25
1/2 square root of 32 times square root of 2
square root of 10 times square root of 16 over square root of 5
thanks for your help
Click here to see answer by josmiceli(3003)

Question 27252: 3 square root a-2= square root 8a+1
Click here to see answer by bmauger(101)

Question 27424: The cube root of x-1 = the cube root of x^2+ 2x -21
Click here to see answer by mbarugel(146)

Question 27759: could i get some help with this please??
sqrt (75a^2b^3c)
Click here to see answer by sdmmadam@yahoo.com(530)

Question 28018: what is -3a squared?
Click here to see answer by longjonsilver(2297)

Question 27962: I need help with all aspects of sqrt and how to reach the solutions could you please show me the method of multiplication
(5√[2] + 3)(√[2] - 2√[3])
Click here to see answer by longjonsilver(2297)

Question 27957: I am trying to work on my math skills and am reall y getting lost with sqrt could you perform the operations on the following so I have a template to work by
√[50] + 2√[32] – √[8]
Click here to see answer by longjonsilver(2297)

Question 28077: write 7 cubed using an exponent
is the answer 7^2??
Click here to see answer by longjonsilver(2297)

Question 28140: it says to simplify where possible
64 with 35 underneath the square root divide by 4 with 7 underneath the square root sign
I got 16 with 35 underneath the square root sign divide by 7 underneath the square root sign
is this right or i am i doing it wrong
Click here to see answer by longjonsilver(2297)

Question 28107: how do you do the square root of 7/9

Click here to see answer by longjonsilver(2297)

Question 28572: The examples in the book:
a. 27 to the power of 2/3 = (27 to the power of 1/3)squared = (3)squared = 9 {3x3 = 9 yes but why is 9 the answer to 27 to the power of 2/3?

b. 16 to the power of 3/4 = (16 to the power of 1/4)cubed = 2 cubed = 8 {I do not see the relationship between 2 cubed or 8 and (16 to the power of 1/4) cubed.
The examples continue in this way and I am stuck. I cannot do any more homework.
Click here to see answer by askmemath(368)

Question 28717: YA SOME DUMB ASS PEOPLE I DONT KNO WAT THIS SHIT IS MOTHAFUCKA HELL WRONG WIT YA
Click here to see answer by wuwei96815(245)

Question 28717: YA SOME DUMB ASS PEOPLE I DONT KNO WAT THIS SHIT IS MOTHAFUCKA HELL WRONG WIT YA
Click here to see answer by mewtwo1(3)

Question 28867: ok my question is..im in pre algebra at klein high school. and my quest is..how can i figure out a easer way to solve problems such as..
xand the exponet is a negitive 8
1/x (negivtive seven) thest problems are so difficult for me to understand so can you please help me ASAP!
thanks a ton
Click here to see answer by Earlsdon(4898)

Question 29034: 3,039,451,023=2,556,000,053e^(10k)
Thanks!

Click here to see answer by AnlytcPhil(958)

Question 29157: simplify the expression
**---****---***---***---
2/20 - 3/7 - 2/5 + 4/63
Click here to see answer by Nate(3495)

Question 29155: divide
----- ----
/ 9 x2 by /18 y2
Click here to see answer by ikdeep(182)

Question 29487: what is the fucking answer to (2y+1)2? tell me please god damnit
Click here to see answer by Earlsdon(4898)

Question 29539: how can you get the square root,like for example :by multiplying,dividing or what can i use.
Click here to see answer by Kalmetam(42)

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