# 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 164836: I have been trying this question for 45 minutes and have looked at many examples. My teacher gave out his personal worksheet so I cannot check my homework answers. The question is: 3 square root sign 18 + 3 square root sign 32. I tried breaking it down and and I just get more confused. I know you have to break it down though..? but how to I add the number outside originally? the number outside the square root sign is not an exponet. Click here to see answer by Mathtut(3670)

 Question 164784: Factor out the greatest common factor. 5x^6*20x^5+25x^4 The factorization is _ (answer in factored form) Click here to see answer by checkley77(12569)

 Question 164946: I tried to solve myself but not sure where how to arrive at answer. Please help. The average (mean) cost for a service club to publish a directory of its members is given by the rational function f(x)= 1.1x+700/x where x is the number of directories printed. Find the average cost per directory for x = 500. Click here to see answer by Fombitz(13828)
 Question 164946: I tried to solve myself but not sure where how to arrive at answer. Please help. The average (mean) cost for a service club to publish a directory of its members is given by the rational function f(x)= 1.1x+700/x where x is the number of directories printed. Find the average cost per directory for x = 500. Click here to see answer by checkley77(12569)

 Question 165005: subtract simply by collecting like radical terms it possible. 9 sqrt 18 - 6 sqrt 2 Click here to see answer by nerdybill(6950)

 Question 165051: can someone help . Multiply: (sqrt[3] + 4sqrt[5])(2sqrt[3] – sqrt[5]) and . Divide: x2 – 3x + 2/8x - 8 ÷ x2 – 4/5x + 10 Click here to see answer by nerdybill(6950)

 Question 165061: 96.) Find all real or imaginary solutions. use the method of your choice. sqrt(7x+29=x+3) Click here to see answer by jim_thompson5910(28504)

 Question 165083: 30.) Solve each equation and check for extraneous solutions. sqrt(a-1 -5 = 1) Click here to see answer by Alan3354(30983)
 Question 165083: 30.) Solve each equation and check for extraneous solutions. sqrt(a-1 -5 = 1) Click here to see answer by jim_thompson5910(28504)

 Question 165003: 25x^4-25^2+6=0 The solution is x= The answer that I got is: sqrt15/5,-sqrt15/5 is this correct! Click here to see answer by edjones(7569)

 Question 165240: I need to solve the equation for r: w=Cr^-2 Click here to see answer by vleith(2825)

 Question 165610: 2 {sqrt x^3} + 5x{sqrt x} - 3{sqrt x^5} Click here to see answer by nerdybill(6950)

 Question 165558: What steps would you take to simplify this problem: (2 √(x-5))(3 √(x+1)) where the x-5 and the x+1 are both completely under the radical sign. Click here to see answer by edjones(7569)

 Question 166064: [(squareroot of 3) + (square root of 5)] to exponent of 2 Click here to see answer by checkley77(12569)

 Question 166502: (2sqrt3 + 4 sqrt 2)-(4 sqrt 2 - 3sqrt3) Click here to see answer by jim_thompson5910(28504)

 Question 166539: the square root of 4e^3g x the square root of 6eg^2 Click here to see answer by Alan3354(30983)

 Question 163585: I know I have to rationalize the denominator, im just not sure how it works with a square root and real number. Help, please! Thanks, Elizabeth. 11 ------- √7 + 8 and 3 -------- 2√5 - √7 Click here to see answer by Alan3354(30983)

 Question 166708: Find the dimensions of a rectangle (a) with the greatest area whose perimeter is 30 feet. Click here to see answer by Alan3354(30983)

 Question 166804: Can someone help the hypotenuse of a right triangle is 2.5 units long. The longer leg is 1.3 units longer then the shorter leg. Find the lengths of the sides of the triangle. Click here to see answer by ankor@dixie-net.com(15638)

 Question 166893: 3 √13/3 Simplify: 3 ( square root of 13 over 3) This is the same question. Just wasnt sure about the best way to present it. Click here to see answer by Alan3354(30983)
 Question 166893: 3 √13/3 Simplify: 3 ( square root of 13 over 3) This is the same question. Just wasnt sure about the best way to present it. Click here to see answer by MRperkins(300)

 Question 167087: i need help with simple radical forms. with no radicals in the denominator. my teacher does not make any sense, and i am an only child, and my parents are away all the time. example: 3 times the square root of 5 divided by the square root of 9 Click here to see answer by nerdybill(6950)

 Question 167305: f=1/2pi*sqrt of LC if L=6.224*10^-5 and C=4.1*10^-10. Solve for f So far, all I've been able to establish is LC=2.55184*10^-15...is this correct and how do I solve the rest? Click here to see answer by Fombitz(13828)