# 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 9122: please help me with this equation: i need it simplified 5squrt18 Click here to see answer by mrduffner(11)

 Question 10098: Please help. I have been posting this question for two days now and no one has responded. I am completely stuck on this one. I don't know where to begin with it. Thanks for helping 3^4x+5 = 9 Thank you Click here to see answer by longjonsilver(2297)

 Question 10282: Express your answer so that only positive exponents occur. Assume that the variables are positive. X3/4 x1/3 x-1/2 (all the fractions are powers to the x's) (16x2y-1/3)3/4 (all the fractions are powers to the x's) Could you please help me with the solutions to these problems. Thanks! Click here to see answer by longjonsilver(2297)

 Question 10967: simplify by factoring. 9y+6y^2+y^3 Click here to see answer by rapaljer(4667)

 Question 11339: 7) The correct solution to 3=2√x+x is: a. x=1 and x=3 b. x=1 and x= 4 c. x=1 and x=9 I can not figure this out...this is what I keep getting: 3=2√x+x 9=4x+x² x²+4x-9=0 And my answer does not factor into any of the possible answers, so I am completely stuck. Can you help me? Click here to see answer by longjonsilver(2297)

 Question 12163: How do you simplify this? root 176 Click here to see answer by rapaljer(4667)

 Question 5440: Find the power of i. -17 i Click here to see answer by khwang(438)

 Question 12559: What steps do you follow to simplify 6^(5/4) / 6^(1/4) and what is your result? Click here to see answer by longjonsilver(2297)

 Question 13957: simplify. leave in radical form 3 divided by the difference of 5 and sqrt of 2 Click here to see answer by longjonsilver(2297)

 Question 13958: simplify sqrt of 4 divided by the difference of 3 and sqrt of 5 Click here to see answer by longjonsilver(2297)

 Question 14985: Unable to come up with the correct solution. (2y/x^2)+(7/x(x-3)). The solution I came up with was 2y+7/x^2(x-3) Click here to see answer by rapaljer(4667)

 Question 15351: 1. Write an equation in the form y=ax^2+bx+c for the quadratic function whose graph passes through (8,0),(0,8) and (-2,0). 2. Find the roots of x^2 + (k^2+1 over k)x+1=0. 3. If (2 over x - x over 2)^2=o,evaluate x^6. 4. Find all values of k that ensure that the roots are real for x-k(x-1)(x-2)=o. 5. Find all possible values of k so that 3x^2 + kx +5 can be factored as the product of two binomial factors with integer cefficients. 6. Show that there are nine pairs of positive integers (m,n) such that m^2+3mn+2n^2-10m-20n=0. 7. The difference in the length of the hypotenuse of triangleABC and the length of the hypotenuse of triangleXYZ is 3. Hypotenuse AB=x,hypotenuse XY=square root x-1 and AB>XY. Determine the length of each hypotenuse. Click here to see answer by khwang(438)

 Question 15455: √(32x^7y^2) Click here to see answer by rapaljer(4667)

 Question 15681: 9x4=25x2 -16 the x is to the 4th power, and the x is 2 the 2nd power , didn't know hot to type these right on the computer/ Its a "substitution problem so i replaced x squared with a t so i get 9t2 (t squared ) -25t +16. . i cannot figure out how to factor this. Click here to see answer by rapaljer(4667)

 Question 15041: evaluate or simplify (27y^9)^-1/3 I am at a lost please help Click here to see answer by AnlytcPhil(1276)

 Question 16073: is 2x^3sqrt6x the same as 2sqrt6 x^3sqrtx ? Click here to see answer by rapaljer(4667)

 Question 14802: square root of 300x15y25= Click here to see answer by rapaljer(4667)

 Question 17162: I need help with subtracting radicals PLEASE!!!!!! The problem is 5sqrt72-3sqrt48-4sqrt128= Click here to see answer by venugopalramana(3286)

 Question 17304: find x-and y- intecepts of the graph of 3x-2y-9=0 Click here to see answer by akmb1215(68)

 Question 17302: f(x)=x^2 Click here to see answer by rapaljer(4667)

 Question 17588: square root x-2-8=0 using graphing utlity to slove this problem I hope someone is here is that good to solve this thank you so much Click here to see answer by rapaljer(4667)

 Question 17582: can some one please show me how to rationalize the denominator in this problem? 1 / 2 + radical x thanks Click here to see answer by rapaljer(4667)

 Question 17587: square x-2=3 solve by using graphing utility to verify the solution Click here to see answer by rapaljer(4667)

 Question 17678: I just wanted to know if I did this problem right. Please e-mail me the answer so I can check it out thanks. 1 / radical x + 2 / x Click here to see answer by rapaljer(4667)

 Question 17646: {x^2-3}=2x graphing to verify your solution Click here to see answer by pwac(253)

 Question 18028: The worksheet states: "Solving Equations Containing Radicals. Solve each equation. Be sure to check for extraneous solutions." Click here to see answer by josmiceli(9661)

 Question 18084: Solve for x: x cubed - 4 cubed = 2x cubed - 7 cubed Click here to see answer by venugopalramana(3286)

 Question 18095: Here's another one: sqrt(13-x) = x-1 Click here to see answer by venugopalramana(3286)

 Question 18094: Could somebody help me with this problem? sqrt(3x+4)-1 = sqrt(2x+1) Thanks Click here to see answer by venugopalramana(3286)

 Question 18435: I am trying to solve a problem relating the volume to the surface area of a sphere. I got this far and cannot finish it. Can you please help me? Thank you. v=4/3pi*(s/4pi)**3/2 Click here to see answer by venugopalramana(3286)

 Question 18729: what is th answer to x+2=4 how do u solve it ? Click here to see answer by xcentaur(357)
 Question 18729: what is th answer to x+2=4 how do u solve it ? Click here to see answer by Alwayscheerful(414)

 Question 18790: 2/5y=-44 Click here to see answer by Alwayscheerful(414)

 Question 18836: Extract SquareRoots (3x-8)^2=16 6x^2=150 Click here to see answer by Earlsdon(6287)

 Question 19448: 5(X-7)squared = 135 My question is x = 7 + 3 square root of 3 or is the anwswer 10 square root of 3? Can I add 7 with 3 square root of 3?? HELP ME PLEASE!!! Thank you. Click here to see answer by wuwei96815(245)