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

Tutors Answer Your Questions about Radicals (FREE)

Question 405147: Solve 9=1/the square root of x. What does x=?
Click here to see answer by Tatiana_Stebko(1539)

Question 405189: √2(2√7 - 4√4) I tried setting it equal to 0 and squaring both sides but all that did was give me 28 is = to 32 and I know that is wrong
Click here to see answer by stanbon(75887)

Question 405219: Guy Wire. How long is a guy wire reaching from the top of a 9 ft pole to a point on the ground 6 feet from the pole. What is the exact length in feet?
Click here to see answer by rfer(16322)

Question 405431: please help!
find the domain:
h(y)= 2y+9/ square root y + 5
I know a square root can't be in the denominator so we would multiple that to the numerator right? and then i am completely stuck.
Click here to see answer by jsmallt9(3758)

Question 405537: What is the easier way of finding the fourth positive root of 81 Do I have to start at 2 then move on to my three's, or is there a formula that will shorten this process? Thank you
Click here to see answer by Alan3354(69443)

Question 405429: state the domain:
g(x)= square root 5x+ 2
5x+2=0
x= -2/5
domain: (- indef. , -2/5]
is it this correct?
Click here to see answer by jsmallt9(3758)

Question 405428: cube root (8m^7n^9/n^2m^2)
i got:
cube root 8m^5n^7
8
^
2 *4
^
2*2
final answer: 2cube root m^5n^7 ????
just want to make sure I did it right.
Click here to see answer by jsmallt9(3758)

Question 405426: square root 9x^2y square root3x^5y^2
i am stuck. I got the obvious the square root of 9 which is 3 but I don't know what to do next and what do to with my variables. My professor ran out of time to go over this in class. please help!
Click here to see answer by jsmallt9(3758)

Question 405687: how do i divide 6 by the square root of 3?

Click here to see answer by Alan3354(69443)

Question 405757: √(y^36 )
Click here to see answer by jim_thompson5910(35256)

Question 405864: √2/√18
Click here to see answer by rfer(16322)

Question 405963: determine the domain:
h(y) = (2y +9)/sqrt(y + 5)
please help! i had to rewrite the question it was misinterpreted.
Click here to see answer by jsmallt9(3758)

Question 405948: 3 to the 3rd root of m^11 over 64 all minus 4m^3 to the 3rd root of m^2 over 27 need to see how its simplified
Click here to see answer by jsmallt9(3758)

Question 405407: square root (x+3) ^8
would it be absolute value x+3?
Click here to see answer by jsmallt9(3758)

Question 406088: simplify 3√2y^3-5y√2y+12√8y^3
Click here to see answer by algebrahouse.com(1659)

Question 406643: what is the quare root of 48 to the 4th power.

Click here to see answer by mananth(16946)

Question 406761: Multiply and Simplify
square root of 2t^5 * square root of 10t^4
Click here to see answer by stanbon(75887)

Question 406760: Square root of 12x^8
Click here to see answer by ewatrrr(24785)

Question 407195: joshua drove 200 miles to visit his grandmother. because of the rainy weather, his average speed wa 10 mph less than his average speed going to his grandmother's home. if the return trip took 1 hour longer, how fast did he drive on his return trip?
Click here to see answer by robertb(5830)

Question 406685: how do you find the distance from a negative and positive number?
as in :
-3,1
Click here to see answer by ewatrrr(24785)

Question 407266: I need help solving problem
What is the solution for this problem?
w^4-2w^2-2=0
Click here to see answer by nerdybill(7384)

Question 407295: Solve for x I need someone to help me?
x^2+12x+4=0
Click here to see answer by ewatrrr(24785)

Question 406722: how to solve 5 root 2 = x square root
Click here to see answer by ewatrrr(24785)

Question 407332: Simplify each expression. Rationalize all denominators.
Assume that all variables are positive.
√8x^3 * √2x^5
Click here to see answer by MathLover1(20849)

Question 406898: square root of 8 divided by square root of 24
simplifying radical expression
Click here to see answer by ewatrrr(24785)

Question 407328: Simplify each expression. Rationalize all denominators. Assume that all variables are positive.
(8-3√2)(8+3√2)
Click here to see answer by richard1234(7193)

Question 407330: Simplify each expression. Rationalize all denominators. Assume that all variables are positive.
1/√3+5
(Fraction)
Click here to see answer by ewatrrr(24785)

Question 407493: 2(x-7)^1/3 +5 = 7
(What would I need to do here?)
Also..
2x^1/2 +8 = 0

Click here to see answer by jim_thompson5910(35256)

Question 407493: 2(x-7)^1/3 +5 = 7
(What would I need to do here?)
Also..
2x^1/2 +8 = 0

Click here to see answer by graphmatics(170)

Question 407803: Solve by Substitution method
x=9y+5
x=3y-1
Click here to see answer by Alan3354(69443)

Question 407974:
Solve Solution is x= or solution is not a real number
Simplify your answer. Type an integer or a fraction and use commas as needed

Thank you!
Click here to see answer by MathLover1(20849)

Question 407979: solve

Simplify your answer, use commas to separate your answers as needed.

Thank you!!
Click here to see answer by MathLover1(20849)

Question 407980: In a right triangle, find the length of the side not given. Give an exact answer and an approximation.
a=2, c=sqrt(11)
The exact length of the 3rd side is----
The approximate length is----
Simplify your answer, type an exact answer, using radicals as needed.
Thank you!
Click here to see answer by Alan3354(69443)

Question 407969: 8 over sqrt 14 +1 (note +1 is not under the radical, but 8 is over everything)

Rationalize the denominator, type an exact answer, using radicals as needed.
Thank you!!!

Click here to see answer by Alan3354(69443)

Question 407824: Solve the radical equation
sqrt(x+5)+1=x
Click here to see answer by ankor@dixie-net.com(22740)

Question 407995: How do i solve a problem like this?:

Evaluate x� - 3x + 4 evaluated for x=1 + i equal

Click here to see answer by Alan3354(69443)

Question 407995: How do i solve a problem like this?:

Evaluate x� - 3x + 4 evaluated for x=1 + i equal

Click here to see answer by Edwin McCravy(20055)

Question 407972: Solve for x

Solution is ----- Use commas to separate answers or
Solution is not a real number

Thank you so much for helping me grasp this!!

Click here to see answer by Edwin McCravy(20055)

Question 407983: i need to rewrite 3a^(3/4)*b^(2/4) in radical form. I need to know the steps of doing this.
Click here to see answer by ankor@dixie-net.com(22740)

Question 408062: Simplify: XY/the cube root of z
Click here to see answer by jsmallt9(3758)

Question 408044: How do I simplify the perfect fourth power factors?
4√16*4√x^12*4√y^12*4√4y^2
Thank you!
Click here to see answer by jsmallt9(3758)

Question 408065: pl. give detail solution. find the value of x and y when

under root x + y = 11
and
x + under root y = 7
Click here to see answer by jsmallt9(3758)

Question 408170: root:3:(375x) - root:3:(3x^4)
Click here to see answer by ewatrrr(24785)

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