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

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 Algebra: Radicals -- complicated equations involving roots Solvers Lessons Answers archive Quiz In Depth

 Question 122614: I have three questions. 1. Simplify [√(32xy^7)/(√2xy)] I think it is 4y^3 but not sure if it is [√ 4y^3] 2. Simplify and combine like radicals. [5(forth root√(16x) + 5(forth root √625x]. I have 25(forth root√x) is that correct? 3. Simplify the expression by rationalizing the demoninator √[3/7]. This one I have no idea what they are talking about. Thank you in advance for any assistance . Gina Click here to see answer by stanbon(57347)

 Question 122683: PLEASE ANSWER THIS COLLEGE ALGEBRA QUESTION, WHAT IS 3/4=1-3X-2/X+1 3/4 AS A FRACTION=1 3X-2 /X+1 AS A FRACTION ALSO Click here to see answer by jim_thompson5910(28595)

 Question 122713: what is the radical sign of 72 simplified??? i don`t know how to do the raical sign on the computer so i need to know wut 72 in a radical sign is when it is simplified Click here to see answer by stanbon(57347)

 Question 122545: I have two questions that have to do with the same model. For the following function, C computes the cost in millions of dollars of implementing a city recycling project when x percent of the citizens participate. C(x)= 1.5x/100-x Using this model, approximately what is the cost if 60% of the citizens participate? Using this model, estimate the percentage of participation that can be excepted if \$5 million is spent on this recycling project? Set up an equation and solve algebraically. Round to the nearest whole percent. I don't understand how to do this so any suggestions will be very helpful. Thank you Click here to see answer by ankor@dixie-net.com(15652)

 Question 122759: Solve. (1)x squared - 7x - 1 = 0 (2)x squared - 4x - 4 = 0 (3)6x squared = 9x Click here to see answer by jim_thompson5910(28595)

 Question 123098: What is the root of the (rad)576? I think its 24. am i correct? Click here to see answer by tutor_paul(490)

 Question 123321: find the real solutions of this equation a radical whose index is 4 the square root of x squared plus 16 equals the square root of 5 Click here to see answer by MathLover1(6632)

 Question 123773: I am having trouble with this problem: square root of X= square root of (x-8) +2 I am tutoring a student and this is a review problem that has me uncertain Click here to see answer by stanbon(57347)

 Question 124285: I think I did this right but want to make sure. im solving for x. 2(x-5)^2=3 I got x=(rad)(3/2) + 5 am i right? Click here to see answer by jim_thompson5910(28595)

 Question 119982: I have a homework problem where we are asked to find the perimeter of a triangle, simple enough. But, after finding that one of the sides was a square root, I did not know how to add it to the two other sides, which were whole numbers. 12+24+12radical3 Click here to see answer by bucky(2189)

 Question 124427: Can anyone help me solve this equation? 160x=3x + the sqaure root of 50x+9000 160x-3x=the square root of 50x + 9000 is all the farther I've gotten. I think I square both sides now to get rid of the square root symbol, but do I need to simplify it first and if so, how? Click here to see answer by ankor@dixie-net.com(15652)

 Question 124661: Find the axis of symmetry of y = 2x squared + 8x - 7 Click here to see answer by stanbon(57347)
 Question 124661: Find the axis of symmetry of y = 2x squared + 8x - 7 Click here to see answer by jim_thompson5910(28595)

 Question 124660: Solve. x squared - 6x - 3 = 0 Click here to see answer by jim_thompson5910(28595)

 Question 124652: Solve. 1) m squared - 6m = 16 2) x squared + 5x = 3 Click here to see answer by jim_thompson5910(28595)

 Question 124651: Solve. 1) y squared + 3 = 21 2) (x+5)squared = 16 Click here to see answer by gems(12)