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

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Algebra: Radicals -- complicated equations involving roots

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Question 152267This question is from textbook Intermediate Algebra
: I don't know if I wrote this problem correct, but here goes:
Simplify the cube root. 3 is the cube root and then the square root symbol of 729. If anyone can understand what I wrote, please help me.This question is from textbook Intermediate Algebra

Click here to see answer by jim_thompson5910(13794)

Question 152293: I need help ASAP PLEASE!!!
I need to simplify

Thank you so much!
Click here to see answer by Edwin McCravy(2922)

Question 152328This question is from textbook Intermediate Algebra
: I need help!!! The problem is to simplify:
square root symbol[49x^12y^4z^8]
Thanks for your helpThis question is from textbook Intermediate Algebra

Click here to see answer by checkley77(7072)

Question 152340This question is from textbook Intermediate Algebra
: I need to perform the indicated operations:
3 sqrt [3] + 2 sqrt [27] - sqrt [12]
Thanks for anyone that can help.This question is from textbook Intermediate Algebra

Click here to see answer by jim_thompson5910(13794)

Question 152334This question is from textbook Intermediate Algebra
: I can't seem to figure this problem out. Need some serious help!
I am suppose to simplify the radical square root 54xy^7 over square root 6xy. Assume that all variables represent positive numbers.
I appreciate anybody that can help me.This question is from textbook Intermediate Algebra

Click here to see answer by jim_thompson5910(13794)

Question 152345This question is from textbook Intermediate Algebra
: I'm having problems with this problem. Can someone help?
Here's the problem...The average (mean) cost for a service club to publish a directory of its members is given by the rational function f(x)=1.15x+700 over x where x is the number of directories printed. Find the average cost per directory for x=1000.
I just can't figure this one out!This question is from textbook Intermediate Algebra

Click here to see answer by jim_thompson5910(13794)

Question 152379This question is from textbook Intermediate Algebra
: I am working on this problem and I just need to know if I did it right.
I'm suppose to simplify each expression an if an expression can't be simplified, write "does not simplify.
The problem is 2x^2+2x-12 over x^3+3x^2-4x-12
This is what I did
Factored to 2(x^2+x-6)
Factored to 2(x^2+3x-2x-6)
Factored to 2(x(x+3)-2(x+3))
Factored to 2(x+3)(x-2) also common denominator
2x(x-2)+2*3(x-2)
Simplified to 2x(x-2)+6(x-2)
Factored to 2(x-2)(x+3)
Second part denominator :
Factored to x^2(x+3)-4(x+3)
Factored to (x+3)(x^2-4)
Factored to (x+3)(x+2)(x-2) also common denominator
Expanded x(x+2)(x-2)+3(x+2)(x-2) also simplified
Factored to (x+2)(x-2)(x+3) also simplified
Now the answer I got was 2x(x-2)+6(x-2) over (x-2)(x+3)(x+2). Was this problem done correctly and is it simplified?
Thanks for anyone who can check this.This question is from textbook Intermediate Algebra

Click here to see answer by Earlsdon(4900)

Question 152329This question is from textbook Intermediate Algebra
: I'm having problems figuring this problem out. Can someone help me on this one?
The problem is rationalize the denominator:
5 over the square root symbol [3]+ square root symbol [5].
Thanks for your help.This question is from textbook Intermediate Algebra

Click here to see answer by ankor@dixie-net.com(6693)

Question 152404: 4√1/2 + 2√18 -6√2/9
Please step-by-step explain process.
Click here to see answer by orca(409)

Question 151506: simplify: 3 square roots of(2/7) - 5 square roots of(7/2) + 3 square roots of 56.
Click here to see answer by orca(409)

Question 152417: 12 RADICAL 48 + 4 RADICAL 27 + 6 RADICAL 75 + RADICAL 3 = X RADICAL 3
SOLVE FOR X
SORRY COULDNT FIGURE OUT HOW TO GET THE RADICAL SYMBOL,
IM COMPUTER STUPID....THANKS
Click here to see answer by scott8148(3385)

Question 152491This question is from textbook Intermediate Algebra
: Can someone help me with this problem. I am stuck on don't know which way to go.
The problem is multiply sqrt of 27b sqrt of 3b^3k and simplify the result.
Thanks for anyone that can help! This question is from textbook Intermediate Algebra

Click here to see answer by Earlsdon(4900)

Question 152489This question is from textbook Intermediate Algebra
: I'm having a problem simplifying this expression. I would appreciate if someone can help me solve this.
The problem is x^2-4 over x^2-36 divided by x+2 over x-6.This question is from textbook Intermediate Algebra

Click here to see answer by jojo14344(1483)

Question 152416: 4 square root sign 100 over 5

Click here to see answer by jojo14344(1483)

Question 152416: 4 square root sign 100 over 5

Click here to see answer by mducky2(55)

Question 152415: 1 square root sign 54 over 3
Click here to see answer by jojo14344(1483)

Question 152414: 2 square root sign 50 over 5
Click here to see answer by jojo14344(1483)

Question 152413: 3 radical 25 over 4
Click here to see answer by checkley77(7072)

Question 152697: Express in simplest form with rationalized denominators: sqrt 7 - sqrt 5 / sqrt 5 + 3 sqrt 7
Click here to see answer by jim_thompson5910(13794)

Question 152756: Rationalize the denominator:
5/sqrt[3]+sqrt[5]
Click here to see answer by Earlsdon(4900)

Question 152787: simplify
radical 18 - radical 50
12 radical x + 2 radical x
i solved them for the first one i got -30 and the second one i got 24x but i dont know if i am doing them correct i need to see the steps
Click here to see answer by ankor@dixie-net.com(6693)

Question 152751: Perform the indicated operations:
3sqrt[3]+2sqrt[27]-sqrt12
Click here to see answer by orca(409)

Question 152755: (8sqrt[3]+3sqrt[2])(4sqrt[6]-5sqrt[2])
Click here to see answer by orca(409)

Question 152886: Ok this is my problem. Since I don't have a "radical" key on my computer, I'm going to type it the way it would be said. Its 81x to the 4th, y to the 20th, all under a radical, raised to the 4th power. Help would be greatly appreciated ...I can't remember how to do these kinds of problems at all. thank you, sarah.
Click here to see answer by jim_thompson5910(13794)

Question 152752: Solve for all values of x: square root sign (x+7) - square root sign (x+2)=1
I am not sure what to do with this question. I think maybe I should mutilply by x+7 and x+5 to remove the square root sign, but then I am lost
Thanks
Click here to see answer by ankor@dixie-net.com(6693)

Question 152069This question is from textbook
: can someone please help I am stuck on this problem and cannot figure it out.
s=50(1+.70/100)^5 How do you solve this problem?This question is from textbook

Click here to see answer by orca(409)

Question 153104: How this could be SLOVE??
sqrt( 4x^2 +5-1 )=2(x+2)
Click here to see answer by checkley77(7072)

Question 152301: How do I simplify this radical expression.
-3 Square root of 20 times square root of 15.
Also this one.
-2 square root of 6a cubed times square root of 3a.

Thanks
Click here to see answer by orca(409)

Question 153289: solve .
Click here to see answer by oscargut(682)

Question 153298: Solve this quadratic equation by Extracting square roots:
1. 1=1/3x^2 and
2. x/4=9/x
Click here to see answer by oscargut(682)

Question 153529: (4m4+3k2)2/3
Click here to see answer by stanbon(26297)

Question 153907: 1 minus square root of 7 on the numerator divided by 3 plus square root of 7 on the demoninator. Can you please go through the steps to rationalize the denominator in the problem. Thank-you very much!
Click here to see answer by nerdybill(2448)

Question 154073: I was trying to solve this problem, I tried rationalizing the denominator but I could not eliminate the middle terms in the denominator because the exponents of the variable inside the cube root sign is not the same. I took this problem from the College Algebra book by William Hart, 4th Edition. This is under exercise 53, problem number 148, page 127. This is the problem:

If only the index of the radicals in the denominator is equal to 2,and not a 3 (which is a cube root) I could immediately perform rationalization.
I hope somebody could help me.
thanks and best regards,
jomar

Click here to see answer by Edwin McCravy(2922)

Question 154303: Simplify: (625)^1/2
Click here to see answer by jojo14344(1483)

Question 154305: Simplify: ^3 squart root 64x^7 divided by ^3 square root 4x
Click here to see answer by checkley77(7072)

Question 154304: Write the equation in the form a + bi, where a and b are real numbers
3 + square root sign 45 divided by 3
Click here to see answer by Alan3354(6097)

Question 154347: I can't get the correct answer of this problem.
Square root of square root of 72(x+1)
((72(x+1)^1/2)^1/2
The Answer is (5)^1/2 x (2(x+1))^1/4
My answer is (6)(2(x+1))^1/2)^1/2
Can you help me please?
Thanks
Click here to see answer by Alan3354(6097)

Question 154432: Perform the indicated operations and write your result in lowest terms
2c/3 * 7/8c
I believe its 7/12
Click here to see answer by jim_thompson5910(13794)

Question 154419: 3 (fourth root of (48x^42y^52))
please let my know asap
thankyou
lisa
Click here to see answer by Alan3354(6097)

Question 154417: 3(48x^42y^52)^(1/4)
Thankyou
Click here to see answer by checkley77(7072)

Question 154704: Find all real solutions: x^2 + 1 = 0
unless I really just don't get ...its not {1} and its not {-1}
Click here to see answer by jim_thompson5910(13794)

Question 154703: Build the rational expression into an equivalent rational expression with the indicated denominator.
y/2 = ?/2y

Click here to see answer by oscargut(682)

Question 154699: 3 square root sign 64x^7 divided by 3 square root sign 4x
Click here to see answer by checkley77(7072)

Question 154702: 1/7 - 10/7e + 3/e^2 divided by 1/7 - 1/e
Click here to see answer by stanbon(26297)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960