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

Tutors Answer Your Questions about Radicals (FREE)

Question 561678: simplify the expression sqrt50 + 12 sqrt8= The answer is supposed to be 34 sqrt2 but I keep getting 29 sqrt 2?

Click here to see answer by scott8148(6628)

Question 561929: 5 square root (32) + 7 square root (50) how do I do this?
Click here to see answer by solver91311(24713)

Question 562751: How do you simplify √(1/(3x^3 y))?
I know it is x^2 outside the radical with y and x inside the radical but I'm not sure what to do with the 1/3.
Click here to see answer by Edwin McCravy(20054)

Question 563437: Simplify. Remember to use absolute - value notation when necessary. If a root can not be simplified, state this.Show your work. Please help with this problem as soon as possible.Thanks!
sqrt (a+b)^2
Click here to see answer by jim_thompson5910(35256)

Question 563838: Simplify the following expression.

sqrt-104 sqrt-8
Click here to see answer by stanbon(75887)

Question 563798: solve:

Click here to see answer by friesr(113)

Question 564026: sqrt(1240/c)=3963. I need to solve this equation for c and am having an impossible time trying to figure this equation out because every number i get does not plug into original equation and make it true.
Click here to see answer by stanbon(75887)

Question 564246: Simplify. Remember to use absolute-value notation when necessary. If a root cannot be simplified, state this.
sqrt((a+3)^2)
Click here to see answer by stanbon(75887)

Question 564678: I am really struggling with these... Please help.
Multiply:
(9-√5)(3+√5)
Multiply and simplify by factoring.
�√y^7 �√16y^8
Click here to see answer by stanbon(75887)

Question 564678: I am really struggling with these... Please help.
Multiply:
(9-√5)(3+√5)
Multiply and simplify by factoring.
�√y^7 �√16y^8
Click here to see answer by mananth(16946)

Question 565238: How would you simplify 2 yds over 16 ft?
Click here to see answer by rfer(16322)

Question 565578: What is the answer to √16 + 3√8 ? Please show the work so i will know how to do any other problem similar to this one on my own. Thank You for your time!
Click here to see answer by ankor@dixie-net.com(22740)

Question 565594: Simplify the following expression. Express in terms of i. show work please.
sqrt -112
Click here to see answer by ankor@dixie-net.com(22740)

Question 566232: Explain the difference between rationalizing the denominator in an algebraic expression whose denominator has only one term involving a radical and one whose denominatror has two terms, at least one of which involves a radical.
Click here to see answer by lwsshak3(11628)

Question 566752: (√a)(√b)=√(ab) i an believing this to be true using the product rule
Click here to see answer by Alan3354(69443)

Question 566853: 1. (-3squareroot of 5)times(4squareroot of 15)
2. (216^2/3)
Click here to see answer by Tatiana_Stebko(1539)

Question 566930: Please help me solve this equation:.
what i have tried is squaring both sides to where i get
the i subtracted the
the answer i got was but my teacher said it was wrong
he has said the correct answer is what did i do wrong?
Click here to see answer by richard1234(7193)

Question 567319: 7n^2=-4n...........I don't understand how to get the answer. My professor says to solve by using any method..i'm just not sure which method to use and how to use it correctly
Click here to see answer by Alan3354(69443)

Question 567403: simplify the following.
i^11 (24/4i^5)

i know that i^11= i but as far as the steps to take in order to simplify the equation I get lost.
Click here to see answer by Alan3354(69443)

Question 567489: square root of y+8 minus square root of y-6 equals -3, Help!
I have tried isolating one of the radicals and raising both sides to the power of the index, then isolating the radical again, but webassign isnt taking my answer! I come up with 6 25/36.
Click here to see answer by ankor@dixie-net.com(22740)

Question 567803: How does 5 times the fourth root of r cubed divided by the square root of r simplify to 5 times the fourth root of r?
Click here to see answer by stanbon(75887)

Question 568317: g(x) = sqrt( -x) I know that that is an imaginary number. I understand that when y = 3, then x = -9. When y = 2, then x = -4, when y = 1, then x = -1. But what is the algebraic process to get those neg x values?
Click here to see answer by Theo(13342)

Question 568723: 4th root of 8 times the 4th root of 16 divided by the 8th root of 2 times the 8th root of 3
Click here to see answer by stanbon(75887)

Question 569285: between which two consecutive integers is the cube root is 11
Click here to see answer by Alan3354(69443)

Question 569284: solve the following radical:
Click here to see answer by lwsshak3(11628)

Question 569282: solve the following radical equation:
Click here to see answer by AnlytcPhil(1806)

Question 569543: Which is the better buy? 16oz bottle of lotion for $2.39
or
24oz bottle of lotion for $3.24?
Click here to see answer by stanbon(75887)

Question 569540: How do uSimplify (5x+4)-(6x+2)?

Click here to see answer by KMST(5328)

Question 570752: hi, i need help on solving the problem, x . i don't understand on how to solve this problem... it would be great if you can help me thank you
Click here to see answer by mananth(16946)

Question 570873: How do you solve ^16 sqrt -7^16?
Click here to see answer by Alan3354(69443)

Question 570947: what is the simplify radical of 686
Click here to see answer by jim_thompson5910(35256)

Question 570944: what is the simplify radical of 686
Click here to see answer by jim_thompson5910(35256)

Question 571201: simplify. radicand sign 3 sqrt 729x^5 over y^3
Click here to see answer by mrjunecarlo1095@ymail.com(10)

Question 571248: Suppose that a cylinder has a volume of 314 in^3 and a radius of 5 in. Find the height of the cylinder. Use pie symbol = 3.14. Here is the given equation,h= Vr^-2/3.14 I know we plug in 314in^3 for V and 5 for r, so h=3.14^3(5^-2)/3.14 The exponents are throwing me off with this equation....Please help me understand this, it is due today. Thank you
Click here to see answer by scott8148(6628)

Question 571247: Solve the equation for r. h= Vr^-2/3.14 I think I might have this figured out, but I'm not certain it is correct. Here is the final answer I got. r=(1/pie symbol*h)/V. All raised to the power of 2
Click here to see answer by scott8148(6628)

Question 571469: √5(√2-√6) I know you have to use the distributive law. I attempted this but I'm now sure if either answer is correct. √10-√30 is this the final answer? or would it be 1/√20?
Click here to see answer by reviewermath(1029)

Question 571813: Find the distance between the two points and the midpoint. (2,1) and (-4,-2). Please help!! I am stuck! I guess I don't understand how to figure out the part with the radicals. I got radical 41 but haave no idea what to do after that.
Click here to see answer by KMST(5328)

Question 572272: help with test tomrrow
Click here to see answer by Tatiana_Stebko(1539)

Question 572436: can you help me solve? what is the solution set?
t(5t+2)=0 (need solution set)
Thank you!

Click here to see answer by nerdybill(7384)

Question 572457: Please help me solve I need a solution set
5v^+38v+48=0
Thank you very much
Click here to see answer by ankor@dixie-net.com(22740)

Question 572863: Im having a problem figuring out how to solve this equation. 3/2a-5=-1 rational expressions
Click here to see answer by rfer(16322)

Question 572930: What is the answer to x+2x=3.75
Click here to see answer by Maths68(1474)

Question 572930: What is the answer to x+2x=3.75
Click here to see answer by mathsmiles(68)

Question 572961: what is the answer to x^2-2x over x^2+3x-10...i want to double check my answer
Click here to see answer by nerdybill(7384)

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