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

Tutors Answer Your Questions about Radicals (FREE)

Question 25669: Hey guys, how are you supposed to simplify fractions with radicals in the denominators (i.e. three over the square root of two). Thank you in advance!
Click here to see answer by stanbon(75887)

Question 25631: Simplify: 2 sqrt 12 + sqrt 3
Click here to see answer by Earlsdon(6294)

Question 25790: Could someone please help solve this equation: p= sqrt (2p-1)
thanx
Click here to see answer by atif.muhammad(135)

Question 25979: is -54 an answer to the cubed root of 4x+11 = 5?
Click here to see answer by mathrebel(25)

Question 26198: sqrt (z)= -1
please help
Click here to see answer by longjonsilver(2297)

Question 26199: find the roots of 2x^2-5x+1=0 ????
thanx
Click here to see answer by Alwayscheerful(414)

Question 26399: Can you help me find the square roots of
9x^6/64y^3
This is due tomorrow and I have no idea how to do these....I need step by step help...PLEASE!!!!
Click here to see answer by stanbon(75887)

Question 26403: it's asking me to find the square root of 27/y^6....but it has a little 3 outside the rational sign...does that make sense?
Click here to see answer by Earlsdon(6294)

Question 26605: Can someone please help!! What is the meaning of fractional exponents? Do they really make working with expressions containing radicals easier by letting you represent them using exponents?
Click here to see answer by longjonsilver(2297)

Question 26545: I need to find out the area of the rectangle and on the sides it says square root of 12 and square root of 20. I know you muliplty them but im not sure how to find the roots.
Click here to see answer by longjonsilver(2297)

Question 26578: This seems like a simple problem... however, I'm trying to learn the core reason on how and why this problem works. (I got the answer from the back of my math book, but I want to understand it.)
b-a^(-1) / a-b^(-1)
Thanks.
Click here to see answer by longjonsilver(2297)

Question 26985: Please help me solve this equation:
Click here to see answer by longjonsilver(2297)

Question 26990: translate: three more than five times the square of a number.
Click here to see answer by josmiceli(19441)

Question 27124: how do you solve the square root of 3x-1=5?
Click here to see answer by Earlsdon(6294)

Question 27418: I was asked to solve for (v) in terms of the other variables. Please help?
T= To/sqrt(1-v^2/c)
If you know the solution please explain. I was told this was Einstein's special theory of relativity
T= starship = 8 hrs (passed)
To= me on Earth = 4 hrs (passed)
c= the speed of light =186,000 miles per second
Click here to see answer by longjonsilver(2297)

Question 27639: How do I simplify this?
7x divided by the cube root of 2x^2.
Click here to see answer by longjonsilver(2297)

Question 27815: Solve by completing the square.
x^2=5x+2
Click here to see answer by Earlsdon(6294)

Question 27815: Solve by completing the square.
x^2=5x+2
Click here to see answer by sdmmadam@yahoo.com(530)

Question 27821: I recently had a quiz at school and one of the problems i missed was 3 on the out side if the radicand sign and then 500 on the inside, may you please tell me how i could go about solving it?

Click here to see answer by Earlsdon(6294)

Question 28104: 2 over square root of 5 - square root of 3
- 3 over square root of 3
I am a special education teacher looking for help for some of the kids I tutor.
Click here to see answer by longjonsilver(2297)

Question 28148: Which of the following numbers is irrational?
A) sqrt 2 * sqrt 8
B) 4 sqrt 2 * sqrt 2
C) sqrt 8/sqrt 2
D) 4 sqrt 2
I hope that I wrote those correctly...I know that 2 is irrational but it appears in every question? I beleive 8 is irrational as well? So i think it could be A?
Thank you for your assistance!
Click here to see answer by longjonsilver(2297)

Question 28291: help on this problems!! squre root around both # 27/36
Click here to see answer by longjonsilver(2297)

Question 28449: Solve the equation: Square root of x^3=27. Do you get rid of the cube for both sides so you get 9? what am I suppose to be looking for?
Click here to see answer by longjonsilver(2297)

Question 28394: I need to solve this equation: x^(1/4)-10x^(1/8)+21=0 for x.
I totally forgot how to do this. My instructor mentioned something along the lines of this: t=x^(1/8) in this equation: at^2+bt+c=0
Still lost... Thanks!
Click here to see answer by venugopalramana(3286)

Question 28204:
Click here to see answer by allie8(1)

Question 28556: (a)square root of x-2 = 1
(b) square root of x to the 3rd power = 27
(c) square root in the 3rd power of x to 2nd power = 9
Click here to see answer by stanbon(75887)

Question 28755: If(x+2) is one factor of 9x^3+10x^2-17x-2, use synthetic division to find all roots?
I attempted to do it but, I am not able to find a answer that will work?
Click here to see answer by stanbon(75887)

Question 29056: To estimate how long a thunderstorm will last, meteorologist can use the formula t= square root of d^3 over 216, where t is the time in hours and d is the diameter of the storm in miles.
1) A thunderstorm is 8 miles in diameter. Estimate how long the storm will last. Give your answer in simplified form and as a decimal(homework asked this, not me)
2) Will a thunderstorm twice this diameter last twice as long?Explain.
Click here to see answer by josmiceli(19441)

Question 29115: square root 2x-5 = 1+ square root x-3
I understand I have to square both sides. Where I lose it is here:
squaring 1 + square root x-3. My textbook has: 2times square root x-3 (end square root) + (x-3)
Thanks
Click here to see answer by longjonsilver(2297)

Question 29173: x^1/3 multiplied by x^5/2, divided by x^-1/5
-- the directions on the problem say "simplify the expression. Express the answer so that only positive exponents occur. Assume that all variables are positive when they appear."
Thank you! Kim
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29186: Help me pls.. Multiplying Radicals

Click here to see answer by Nate(3500)

Question 29134: To estimate how long a thunderstorm will last, meteorologist can use the formula: t= square root of d^3 over the square root of 216, where t is the time in hours and d is the diameter of the storm in miles.
1) A thunderstorm is 8 miles in diameter. Estimate how long the storm will last. Give your answer in simplified form and as a decimal(book asked this, not me)
2)Will a thunderstorm twice this diameter last twice as long?Explain
Click here to see answer by Nate(3500)

Question 29221: Please help me:
If f(x)=square root of x-2 minus square root of 4x+1, find a such that g(a)= -3
Click here to see answer by Nate(3500)

Question 29284: (sqrt7-sqrt11)(2sqrt7+3sqrt11)
I tried to foil but I don't understand the square root equality. I keep trying but I can't help thinking that I keep on getting the wrong answer.
Thanks!
Click here to see answer by longjonsilver(2297)

Question 29360: Someone please help me by Solving Equations With Radicals, thanks!
1.

2.

3.
4.
Click here to see answer by askmemath(368)

Question 29360: Someone please help me by Solving Equations With Radicals, thanks!
1.

2.

3.
4.
Click here to see answer by sdmmadam@yahoo.com(530)

Question 29360: Someone please help me by Solving Equations With Radicals, thanks!
1.

2.

3.
4.
Click here to see answer by josmiceli(19441)

Question 29403: 9^3/2=

Click here to see answer by Bb(20)

Question 29403: 9^3/2=

Click here to see answer by stanbon(75887)

Question 29489:
For all x > 0 and y > 0, the radical expression _ �x ---------- 3�x - �y is equivalent to ____?

Click here to see answer by AnlytcPhil(1806)

Question 29617: how do you fin the lgs of an isosceles triangle when te hypotenuse is 41.
i really need help on 45-45-90 tiangles and 30-60-90 triangles
Click here to see answer by askmemath(368)

Question 29608: What is the square root of 2x+5 (both under the square root symbol) equals 2+the square root of x-2 (also both under the square root symbol)?
Click here to see answer by longjonsilver(2297)

Question 29836: The function f(x)= 29x to the 1/3 models the number of plant species, f(x), on the islands of the Galopagos in terms of the area, x, in square miles, of a particular island. Use the function to solve:
What is the area of a Galapagos Island that has 58 species of plants.
Can you get me started here? I have no idea of even where to begin.
Thanks in advance.
Click here to see answer by longjonsilver(2297)

Question 29886: Oh lord, please help!!
Simplify the expression. Include absolute bars where necessary.
6√g to the 6th power
Thank you in advance.
Click here to see answer by askmemath(368)

Question 29890: Solve the equation
√2x + 5 - √2x � 4 = 3
Help!!! Please expalin this!!

Click here to see answer by Cintchr(481)

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