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

Tutors Answer Your Questions about Radicals (FREE)

Question 98028: Okay, I guess I did not get it. the little 3 outside the square root of 8y^3
please explain.
Click here to see answer by scott8148(6628)

Question 98091: Could some one please show me how to solve this expression. I am not really understang how to simplify. Assume that all variables represent positive real numbers.
sqrt
Click here to see answer by stanbon(75887)

Question 98075: Please help me I am not sure how to sovel this. Please need some help. Evaluate if possible.
Click here to see answer by ankor@dixie-net.com(22740)

Question 98095: Could someone please show me how to simplify by combining like terms. I am not sure how you combine the sqrt of this equation.
sqrt 63 - 2 sqrt 28 + 5 sqrt 7
Click here to see answer by checkley71(8403)

Question 98097: Could someone please show me how to multiply and then simplify this expression. I have a few other problems like it and I am not sure how to solve it.
sqrt 13 * sqrt 5
I understand that by multiping 13 * 5= sqrt 65
How do I simplify this????
Click here to see answer by stanbon(75887)

Question 98139: (sqrt.of 7-2sqrt.of 3) (sqrt of 7 + 2sqrt of 3)
Click here to see answer by edjones(8007)

Question 98145: Solve algebraically and check your potential solutions: sqrt(x+20)-x=0

Click here to see answer by mathslover(157)

Question 98145: Solve algebraically and check your potential solutions: sqrt(x+20)-x=0

Click here to see answer by edjones(8007)

Question 98188: Rationalize the denominator if necessary. Then simplify each radical expression. Could someone help me I am unable to solve this expression.

Click here to see answer by Edwin McCravy(20055)

Question 98254: Please help me I am unable to slove this expression.
-9-sqrt108 /3
Click here to see answer by checkley71(8403)

Question 98254: Please help me I am unable to slove this expression.
-9-sqrt108 /3
Click here to see answer by edjones(8007)

Question 98286: I think this is the category this problem falls under:
(15.91)
1.96 --------
("square root" 15)
I don't know what to do, I'm pretty sure I would take the square root of 15 and times it by itself and the 15.91 and then that cancels out the bottom of the fraction. Then I have 1.96 (15.91) square root of 15. Then I would take the square root of 15, well that's where I get lost. I can't take anything out of 15 I dont think. I mean, I could take 6 out leaving 9 in? I know there's something like that, that I'm supposed to do. But I'm just not sure. Please help!
Click here to see answer by checkley71(8403)

Question 98253: could someone please help me with this math problem.
18 sqrt 567 /9
Click here to see answer by checkley71(8403)

Question 98180: Simplify the radical expressions. Assume that all variables represent positive real numbers
/96
Click here to see answer by checkley71(8403)

Question 98182: Simplify the radical expressions. Assume that all variables represent positive real numbers
/48 + /147
Click here to see answer by stanbon(75887)

Question 98185: Rationalize the denominator if necessary. Then simplify each radical expression. Please help me I cant seem to understand this.

Click here to see answer by checkley71(8403)

Question 98588: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/96
Click here to see answer by stanbon(75887)

Question 98586: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/(8/25)
Click here to see answer by stanbon(75887)

Question 98582: Find the square root. Assume that all of the variables represent positive real numbers.
/25x^12 (radical)
Click here to see answer by jim_thompson5910(35256)

Question 98584: Find the cube root. of the radical
^3/512
Click here to see answer by Nate(3500)

Question 98591: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/25 + /48 + /49 + /192
Click here to see answer by checkley71(8403)

Question 98590: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/48 + /147
Click here to see answer by checkley71(8403)

Question 98585: Simplify the radical expressions. Assume that all variables represent positive real numbers.
/72 X /2
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 98583: Find the square root. Assume that all of the variables represent positive real numbers.
/-121 (radical)
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 98581: Find the square root. Assume that all of the variables represent positive real numbers.
/(9/4) (radical)
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 98580: Find the square root. Assume that all of the variables represent positive real numbers.
/196
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 98499: Please help me simplify by combining like terms:
x*sqrt18-3*sqrt8x^2
I got as far as: x*sqrt9*2-3*sqrt2^3x^2=x*sqrt3^2*2-3*sqrt2^3x^2
Thank you so much for your help.
Click here to see answer by 303795(602)

Question 98760: COULD SOMEONE PLEASE SHOW ME HOW TO SOLVE THIS EQUAATION? i CAN ONLY GET SO FAR.

This is what i have gotten cant seem to remember how to get any further.

Click here to see answer by edjones(8007)

Question 98904: Could you please help me solve this question: In a right triangle, the length of the hypothenuse is 5 and the length of the legs is 3, determine the tangents of all three angles. Also find the distance between (1,3) and (5,6).
Thank you, very much.
Click here to see answer by Earlsdon(6294)

Question 99003: This one has kicked my skunk over and over! I know the answer is 4 & 20, but I cannot see how to arrive at that answer.
4y+20 under the radical sign - y-4 under the radical sign = 6
I hope I explained that well enough. I tried to cut and paste the problem out of my Microsoft Word file but it did not work.
Click here to see answer by stanbon(75887)

Question 99070: 28.)sqrt7(2sqrt3+3sqrt7)
50.)(18+sqrt567)/9

I have added and subtracted radicals, but can not understand the multiplication or division of then. Will some one please explain them to me. I would reallt appreciate it!!!
Click here to see answer by edjones(8007)

Question 99140: The problem is to simplify and the answer said I got it wrong.
Problem:

My answer
5a^2b sqrt(b^3)
Click here to see answer by Nate(3500)

Question 99466: Solve the following algebraically. Must show all work.
x3/2=125
Click here to see answer by elima(1433)

Question 99472: Simplify by combining like terms
sqrt(63)-2sqrt(28)+5 sqrt (7)
Click here to see answer by elima(1433)

Question 99474: Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression
18 + sqrt(567) dived by 9
Click here to see answer by elima(1433)

Question 99475: Perform the indicated division. Rationalize the denominator if necessary. Then simplify each radical expression
-9-sqrt(108) dived by 3
Click here to see answer by elima(1433)

Question 99643: I need to solve this problem and I can'tfigure it out:
square root of x^2-15=square root of 2x
Click here to see answer by checkley71(8403)

Question 99643: I need to solve this problem and I can'tfigure it out:
square root of x^2-15=square root of 2x
Click here to see answer by edjones(8007)

Question 99675: detemine x so that 800=8*10^8*x^-3/2
please give me the answer as soon as possible its answer is is 10^4
i m very thankful to u
Click here to see answer by stanbon(75887)

Question 99771: 6. Find the choice below which gives a first step in solving the given system of equations by the addition method.
2x - 3y = 7
x - 4y = 2
(Points: 10)
Multiply the first equation by 3 and the second by 4.
Multiply the first equation by -4 and the second by -2.
Multiply the second equation by -2.
Multiply the first equation by 4.
Click here to see answer by Edwin McCravy(20055)

Question 100105: Solve each the equations. check the solutions
sqrt 4+1+3=0
Click here to see answer by oberobic(2304)

Question 100331: In the coordinate plane, the points F(-2,1), G(1,4), and H(4,1) lie on a circle with center P. What are the coordinates of point P?
Choices:
(A) (0,0)
(B) (1,1)
(C) (1,2)
(D) (1,-2)
(E) (2.5, 2.5)
Please show me how to solve this equation.
Thank You very much!
Click here to see answer by stanbon(75887)

Question 100472: Hello:
Thank you so much for offering the free tutoring.
My exercise is:
x^2+4x+4=7.
I have gotten to:
x^2+4x+4=7=0
x^2+4x+(-3)=0
now I am stuck.
Thank you for your help.
Click here to see answer by bucky(2189)

Question 100479: Let x(1) and x(2) be the real solutions to the equation
x^2-sqrt(11)x+2=0
Then the sum x(1)+x(2) is equal to ?
I have the answer, but have no idea how to get to it.
I think the two solutions are:
1/2(-sqrt(2) + sqrt(11); converted to decimals: 0.951206
and
1/2 (sqrt(2) + sqrt(11); converted to decimals: 2.3654
So x(1)+x(2) = 3.316627
How to work this out? Squaring? (How?), Factoring (How?)
Click here to see answer by stanbon(75887)

Question 100522: Simplify each radical expression.
(sqrt3+5) (sqrt3-3)
Click here to see answer by 303795(602)

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