# 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 68716: What is the square root of 306 using the factor tree method rahter than comong out with decimals Click here to see answer by rmromero(383)

 Question 68803: what is the the square root of 28n squared? Click here to see answer by jim_thompson5910(28545)

 Question 68801: What is the answer to -3 on the outside of the square root of 120? Click here to see answer by jim_thompson5910(28545)

 Question 69555: Simplify: ^3(sqrt)48 a.16 b.4 ^3(sqrt)4 c.2 ^3(sqrt)6 d.8 ^3(sqrt)6 Thanks Click here to see answer by funmath(2925)

 Question 69624: ```Simplify. I have come up with . Is this correct???? I think that I have done something wrong, but I am not sure.``` Click here to see answer by Edwin McCravy(8903)

 Question 69921: my question is: What is the sqrt of 75 and I ma trying to simply radicals. My teacher has told me that at least one the numbers must be a perfec5rt square. Example: sqrt 27 = sqrt9 sqrt3 or something like that. Help please Click here to see answer by jim_thompson5910(28545)

 Question 70057: square root of 3 + the square root of 27 Click here to see answer by rapaljer(4667)

 Question 70146: square root 3 * square root x + 1 = square root 3x - 5 Click here to see answer by ankor@dixie-net.com(15646)

 Question 70601: the squareroot of ten times the squareroot of sixteen over the squareroot of five Click here to see answer by checkley75(3666)

 Question 70575: x^2+x+ the square root of (x^2+x) -2 =0. I know to iscolate the radical one one side of the equation and then square both sides. I'm supposed to get a quadratic equation, set it equal to zero and solve. But instead I'm getting x^4+2x^3-4x^2-5x+4=0. As this is not in standard ax^2+bx+c form and the degree is 4, I have no idea now to solve it for x. Please help. Click here to see answer by Earlsdon(6287)

 Question 70774: The square root of x^3 equals 8. Solve. Click here to see answer by terbear1963(43)

 Question 70971: I need help with this three problems i've tried them every way possible but i don't get the answer. I have the answers but i don't know how to get to them. so i can understand them and do my own homework. please help. Problem# 30 for chapter 9.5 Solve each of the equaitons . Be sute to show how to check the solutions. inside of the square root it has : 2y+7 then space +4 = y Problem # 16 from chapter 9.6 Geometry. For the home described in exercise 15, if the roof is 7m from peak to eave and the attic space is 3m high at the peak, how long does each of the pieces of insultaion need to be? round to the nearest tenth. Click here to see answer by Earlsdon(6287)

 Question 71298: Need help solving these two problems; . Simplify: [81x8y12z20] . Perform the indicated operations: 3√[48] + 7√[12] –√[75] Click here to see answer by checkley75(3666)

 Question 71578: The cube root of x^2 equals 4. Solve. Click here to see answer by stanbon(57290)

 Question 71579: Is the square root of x^2 an identity (true for all values of x)? Explain. Click here to see answer by mathman409(67)

 Question 71746: The volume of a cube is given by V=s^3. Find the length of a side of a cube if the volume is 729cm^3. Click here to see answer by checkley75(3666)

 Question 71909: 1. I need to figure out the soultion set for radical(3x+7)+ radical(x+6)=3. The number in parenthesis are actually supposed to be under the radical, I just don't have a button for that. So radical + a radical. 2. Find the domain of: x-2/radical(x+2) Thank you, Nikki Click here to see answer by ankor@dixie-net.com(15646)

 Question 72005: I need help solving, -2square root of 5 +5 square root of 5 -3 square root of 5 Click here to see answer by Earlsdon(6287)

 Question 72094: find all roots of the polynomial x3 - x2 +16x -16 possible answers: 1, 4, -4 -1, 4, -4 -1, 4i, -4i 1, 4i, -4i what does the i come from? please explain equation and solution.Thank you Click here to see answer by rmromero(383)

 Question 72193: I did the first two but i need to know if i am correct and then i need help in the third one. Directions for all three: Evaluate, if possible Problem #6 sqrt121 = my answer is 11 Problem #12 sqrt (4)/(25) = my answer is (2)/(5) Problem #3 3sqrt - (8)/(27) This one i have no idea.... Click here to see answer by pradhyumna.kumar@gmail.com(62)

 Question 72198: Problem #32 Directions: simplify by combining like terms. sqrt 63 - 2sqrt 28 + 5sqrt7 Problem # 50 Directions: Find the perimeter of the triangle shown in the figure. the triangle has for the hypotenuse leg= 4 height leg = sqrt 5 - sqrt 3 base leg = sqrt 5 + sqrt 3 Click here to see answer by pradhyumna.kumar@gmail.com(62)

 Question 72196: Directions for both problems: Use property 1 to simplify each of the following radical expressions. Assume that all variables represent positive real numbers. Problem #2 sqrt 50 Problem #24 sqrt 72x^3 Click here to see answer by rmromero(383)

 Question 72199: Problem#4 directions: Perform the indicated multiplication. Then simplify each radical expression. sqrt3 Multiplied by sqrt 5 Problem#28 directions: Perform the indicated multiplication. Then simplify each radical expression. sqrt7 (2sqrt3 + 3 sqrt7) Problem#50 Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression. (18+sqrt567)/(9) Click here to see answer by rmromero(383)

 Question 72254: Write in simplified form the square root of 5/the square root of 2b Click here to see answer by bucky(2189)