# 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 Solvers Lessons Answers archive Quiz In Depth

 Question 481249: x cubed-5x=0 i tried to factor it out- x(x squared -5) but i dont know how I could get that to equal 0. Click here to see answer by MathLover1(6634)

 Question 481209: How do I solve this? √7x+46=x+4 What does x equal? Click here to see answer by Alan3354(30993)

 Question 481631: the square root of 8 divided by 3 :) Click here to see answer by jim_thompson5910(28595)

 Question 482109: use rational exponents to write ^3√x * ^5√7x choose from: a. ^15√7x8 b. 343x c. ^15√5,764,801x^16 d. ^15√343x^8 Solve √x+10=-5 a. x=____ b. There is no solution Click here to see answer by stanbon(57354)

 Question 482312: if i have a 15 x 43 ft rectangle-- how many square feet is that? Click here to see answer by Alan3354(30993)

 Question 482969: I need help finding the square root of 80? Click here to see answer by Student3354(13)

 Question 482981: How do I calculate the square root of a number without a calculator. Click here to see answer by richard1234(5390)

 Question 482954: What is 4 more than the square root of 2x equals x? Please include all work. Click here to see answer by ankor@dixie-net.com(15652)

 Question 483737: I was wondering if you could help me with this problem? *Note. cbrt is cubic root. I wasn't to sure how to type it out: 2*cbrt(81)+3*cbrt(24) Click here to see answer by Alan3354(30993)

 Question 483944: How do you find the inverse of f(x)= 1/(x^2) or f(x)=1/(x^3)? I don't really have a problem with finding inverses but I can't figure out these two. I usually switch x and y, so can anyone explain it to me in that manner? A detailed answer is really what I need. Thank you, in advance! Click here to see answer by ankor@dixie-net.com(15652)

 Question 484007: It would be greatly appreciated if you could help with this problem. I need to rationalize the denominator: Click here to see answer by Tatiana_Stebko(1326)
 Question 484007: It would be greatly appreciated if you could help with this problem. I need to rationalize the denominator: Click here to see answer by Alan3354(30993)

 Question 484312: What are the two square roots of 3.24 Click here to see answer by stanbon(57354)
 Question 484312: What are the two square roots of 3.24 Click here to see answer by amoresroy(333)

 Question 485119: what is the square root of x to the 8th power? Please show me the work so that I may learn how to solve these problems. Click here to see answer by ankor@dixie-net.com(15652)

 Question 485853: What is 9 divided by the cubed root of 3? Click here to see answer by Aswathy(23)

 Question 485564: (5th root of -3)/(5th root of 96) My hang up with this problem is what to do with the "5th" and how to simplify 96 down. If you could please help me with this I would appreciate it. Seeing your work will help the most. Click here to see answer by lwsshak3(6505)

 Question 480485: I was helping another user over email, and was ask this question. I am not certain of the answer and do not want to give any mis-information. (-a^2 + b^2)(a^2 + b^2) If you could help, it would be appreciated. Cleomenius. Click here to see answer by lwsshak3(6505)
 Question 480485: I was helping another user over email, and was ask this question. I am not certain of the answer and do not want to give any mis-information. (-a^2 + b^2)(a^2 + b^2) If you could help, it would be appreciated. Cleomenius. Click here to see answer by MathTherapy(1424)

 Question 486950: how do I solve the square root of x+2 -1 outside the root = square root of x-5? Click here to see answer by bucky(2189)

 Question 487160: (6x)4 when x=2 the four is to the fourth power. i do not want the answer but i need to now if i put six and x to the fourth power then multiply or if i multipy 6 and x then fourth power. Click here to see answer by ankor@dixie-net.com(15652)