Questions on Algebra: Radicals -- complicated equations involving roots answered by real tutors!

Tutors Answer Your Questions about Radicals (FREE)

Question 91636: a problem on a take home test cube root of 125-xcubed =5-x do i first cube both sides to get rid of the radical or should i solve the radical on the left side if i cube both sides i get 125- 5x to the 3 power. if take the cube root of the left side i get 5ixsquare root of 5 =5-x ihave no idea what to do please help thank you very much!
Click here to see answer by ankor@dixie-net.com(15660)

Question 92074: Given the equation x^3 - 2x^2 + x - 3 = 0, what are the possible rational roots
please someone help me?
Click here to see answer by jim_thompson5910(28598)

Question 92843: Simplify by combining like terms
sqrt of 63 - 2 sqrt of 28 + 5 sqrt of 7
Thank you - Hope this makes sense
Click here to see answer by scott8148(6628)

Question 92904: 2 over square root of 3 plus the square root of 2.
Rationalize the denominator.
Mike
Click here to see answer by scott8148(6628)

Question 93108: Simplify:
square root of 15x^6 * the square root of 16x^5
I got the answer 4x^5 square root of 15x. Is this correct? Thanks so much!!
Click here to see answer by vertciel(183)

Question 93109: simplify:
square root of 20 + the square root of 80 - the square root of 125
I got to this point:
(2 square root of 5) + (4 square root of 5) - (5 square root of 5) but I don't remember what to do next. Thanks so much!!
Click here to see answer by tutorcecilia(2152)

Question 93035: √3 - √1/3

answer is 2√3
___
3

I need to know how to get the answer.

Click here to see answer by bucky(2189)

Question 93428: please help me simplify this problem and show all work sqrt (-25) simplify
Click here to see answer by jim_thompson5910(28598)

Question 93427: simplify please help me learn this and show all work. -sqrt(3) (sqrt (-3)
Click here to see answer by jim_thompson5910(28598)

Question 93426: sqrt (-36) simplify please help me learn this and show all work.
Click here to see answer by jim_thompson5910(28598)

Question 93425: sqrt (-36) simplify please help me learn this and show all work.
Click here to see answer by jim_thompson5910(28598)

Question 93388: Need help with this -
how do you write 9.49 in radical form
Don't get???
thanks
LLO
Click here to see answer by checkley75(3666)

Question 93478: if f(x)= 2x-3, then compute f(f(f(f(f(f(3))))))
Click here to see answer by Edwin McCravy(8909)

Question 93442: Square root of 3 over (square root of x minus the square root of 3).
Click here to see answer by ankor@dixie-net.com(15660)

Question 93538: how do u do order of operations correct
Click here to see answer by stanbon(57387)

Question 93983: i think this is the right subject, but i am not sure. if you could help me anyway, that would be awesome. i really hope so, thank you so much. it says rationalize the following...
(/x)+2
-------
(/x)-1
(p.s.(/x) means the square root of x) thank you so much!
Click here to see answer by jim_thompson5910(28598)

Question 93986: The question is:
For all x > 0 and y > 0, the radical expression or "[ sqrt(x) ] / [ (3) * sqrt(x) - sqrt(y) ]" is equivalent to:
The answer is:
"[ 3x + sqrt(xy) ] / [9x - y]"
How did they get this answer?
Click here to see answer by jim_thompson5910(28598)

Question 94074: I am in need of help
Simplify: sqaure root7*square root14
and also evaluate 3 square root 1/64 if possible.
Thank you
Click here to see answer by Nate(3500)

Question 94261: Can the square root of 1/64^3 be evaluated? If so, please show me how
Click here to see answer by stanbon(57387)

Question 94322: how do you use a calculator to approximate sqrt 3/5 to the nearest hundredth?
Thank you
Click here to see answer by checkley71(8403)

Question 94322: how do you use a calculator to approximate sqrt 3/5 to the nearest hundredth?
Thank you
Click here to see answer by edjones(7569)

Question 94371: 2/(3+sqrt5)
please help i forgot how to deal with the denominator
Click here to see answer by Earlsdon(6287)

Question 94474: the square root of 16a^3b^2
Click here to see answer by tutorcecilia(2152)

Question 94473: the square root of 3 over 2
Click here to see answer by checkley71(8403)

Question 94797: the equation d=1.2 square root h, gives the distance, D, in miles that a person can see to the horizon from a height ,h, in feet.
A. solve equation for h,
B. a national park peak is 14,255 feet in elevation. How far can you see to the horizon from the top of peak.
I am lost on how to solve the equation and then figure out the steps to take to come up with the answer for B.
Click here to see answer by ankor@dixie-net.com(15660)

Question 95312: How do you multiply, add etc radicals and then factor? The prob is (1 + sq root of 3)squared. Please help. Thnx
Click here to see answer by jim_thompson5910(28598)

Question 95409: how do you solve this problem- 8+ the square root of 24
Click here to see answer by checkley71(8403)

Question 95525: Hello!
I have tried working this problem but when I checked my answer it did not work with the problem. Here is the problem:
Solve the following equations algebraically:
sqrt(2x+3)-sqrt(x+7)=1
Here is my work:
I squared both sides to give me
2x+3-x+7=1
Next I added like terms to get x+10=1
I brought over the 1 to give me x=9
I must be doing something wrong. Any help will be appreicated.

Click here to see answer by stanbon(57387)

Question 95593: What square root property is essential to solve any radical equation involving square root?
Click here to see answer by stanbon(57387)

Question 95674: Simplify the radical expression.
3√x8
Click here to see answer by checkley71(8403)

Question 95682: Simplify the radical expression.
^3RT(x^8)
(cube root of X to the eighth power)
sorry my question wasn't clear the first time.
thanks!!
Click here to see answer by stanbon(57387)

Question 95724: I am a bit confused on evaluating a problem with a radical in it:
2^3-[10+4 sqrt[25-9]]+30-17
I'm not sure about how to handle(((10+4 sqrt 25-9)))
Do I subtract 9 from 25 then find the sqrt? and I'm not sure what function after the 10+4
Click here to see answer by stanbon(57387)

Question 96103: How do you solve equations like these?
Rules:Simplify but leave in radical form
1.) radical 20a^2
2.) radical 30a^7
3.) 5 radical 250
Please help
And thank you
Click here to see answer by scott8148(6628)

Question 96225: Find the time required for an object to fall to the ground from a building that is 1400 ft high.
Click here to see answer by stanbon(57387)

Question 96222: evaluate as possible
/(4/25) (radical equation)
Click here to see answer by jim_thompson5910(28598)

Question 96246: Factor:
3y^2 + 10y + 7
Click here to see answer by prabhjyot(164)

Question 96252: Solve the equation:
3x^2 + 15x + 18 = 0
Click here to see answer by jim_thompson5910(28598)

Question 96252: Solve the equation:
3x^2 + 15x + 18 = 0
Click here to see answer by prabhjyot(164)

Question 96250: Solve the equation:
y^2 - 2y -24 = 0
Click here to see answer by jim_thompson5910(28598)

Question 96248: Factor:
9x^2 + 6x + 1
Click here to see answer by jim_thompson5910(28598)

Question 96244: Factor by Grouping :
ax - bx -4a + 4b
Click here to see answer by prabhjyot(164)

Question 96245: Factor:
x^3 - 3x^2 -18x
Click here to see answer by tutorcecilia(2152)

Question 96221: evaluate as possible
/-121 (radical equation)
Click here to see answer by tutorcecilia(2152)

Question 96304: Hello i was wondering if you could help me simplify

Thank you!
Click here to see answer by checkley71(8403)

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