Questions on Algebra: Square root, cubic root, N-th root answered by real tutors!

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Question 186777: Could someone help me out here?
I understand how to simplify sqrt(3/25) but how do you simplify;
sqrt(a^2)/sqrt(b^5)
or
sqrt(a/b)sqrt(a^2)/(b^2)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 186786: Could someone help me with this one;
sqrt(-25)sqrt(-9)
My answer was 15, but it got marked wrong on my test, but sqrt(-25)=-5 and sqrt(-9)=-3 and -5*-3=15 so I dont really understand why its wrong.

Click here to see answer by jim_thompson5910(35256) About Me 
Question 186786: Could someone help me with this one;
sqrt(-25)sqrt(-9)
My answer was 15, but it got marked wrong on my test, but sqrt(-25)=-5 and sqrt(-9)=-3 and -5*-3=15 so I dont really understand why its wrong.

Click here to see answer by D13E12(2) About Me 

Question 186788: Ok I got another question; why doesnt sqrt(5)+1 over sqrt(5)-1= 2+sqrt(5) over 2??
Click here to see answer by josmiceli(19441) About Me 

Question 187078: square root of 4q-3 =3
Click here to see answer by user_dude2008(1862) About Me 

Question 186972: 3^1-2y=square root of 3
Click here to see answer by stanbon(75887) About Me 

Question 187233: i dont know how to multiply squarroots and i have homework due tomorow and i will get a week of detention if it is not dont i need some one to explain it to me so i can do it.!!!????
Click here to see answer by user_dude2008(1862) About Me 

Question 187246: please help solve in steps.
square root of 54a5b7

Click here to see answer by jim_thompson5910(35256) About Me 

Question 187255: Perform the indicated operation(s) and give the simplified form of the expression.
sqrt(17) - 2/5 sqrt(75)

Click here to see answer by vleith(2983) About Me 

Question 187257: Perform the indicated operation(s) and give the simplified form of the expression.
(x - sqrt(7))^2

Click here to see answer by vleith(2983) About Me 

Question 187260: Solve the equation x/2 + 1 = sqrt(3) for both the exact irrational root and its rational approximation to the nearest tenth.


Click here to see answer by solver91311(24713) About Me 

Question 187417: (5+3Squareroot sign 2) ( squareroot sign3+squareroot2)
Click here to see answer by stanbon(75887) About Me 

Question 187476: evaluate
sqrt(75a^)/sqrt(3)

Click here to see answer by Alan3354(69443) About Me 

Question 187477: simplify
sqrt(6) (8 sqrt(5)-6 sqrt(6))

Click here to see answer by stanbon(75887) About Me 

Question 187474: Evaluate 4 sqrt(81)
Evaluate - sqrt(9)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 187629: Express the following in simplest form with a rational denominator.
%28sqrt%282%29-2%29+%2F%282sqrt%283%29%2Bsqrt%287%29%29
So far I have: multipied it by %28sqrt%283%29+-+7%29+%2F%28sqrt%283%29+-+7%29
But after that I'm not to sure what to do. I don't even know if what I have done so far is right.

Click here to see answer by Edwin McCravy(20054) About Me 

Question 187649: I am so confused where to start. I seriously have no idea about what to do and my teacher says this is very important that we learn this weekend. please help me.
Click here to see answer by Alan3354(69443) About Me 

Question 187692: Simplify each of the following:
1. sqrt(40)
2. 2sqrt(125)
I've tried a few things, but just can't seem to work it out, even though I know it is a simple question.

Click here to see answer by edjones(8007) About Me 

Question 187924: Please help me add the following square roots together.
sqrt12x^5 + sqrt300x^5 -2xsqrt48x^3

Click here to see answer by Earlsdon(6294) About Me 

Question 187977: The problem is:
5sqrt12 / 4sqrt6
After I put it in fractional form am I supposed to multiply by the conjugate?

Click here to see answer by stanbon(75887) About Me 

Question 188414: I cant remember how to solve: (square root 3x+1) -2=8
Click here to see answer by solver91311(24713) About Me 

Question 188434: simplify the square root of 144+25
Click here to see answer by jim_thompson5910(35256) About Me 

Question 188651: sqrt of 10 ( sqrt of 5-sqrt of 2)
Click here to see answer by Mathtut(3670) About Me 

Question 188864: How would I solve 25=square root of (100 + x squared)?
Click here to see answer by Alan3354(69443) About Me 

Question 189143: Can you please help me? The question is: Find the nth term for the sequence 1(3), 2(4), 3(5), 4(6), 5(7)...

Thank You!

Click here to see answer by Mathtut(3670) About Me 

Question 189161: I am having a hard time trying to figure out this problem. What is the square root of 580/144? I just can't figure it out.
Click here to see answer by stanbon(75887) About Me 

Question 189182: 50x^2
Click here to see answer by Mathtut(3670) About Me 

Question 189224: Can you help me simplify this: -5(radical sign over32)+2(radical sign over45)
Click here to see answer by Mathtut(3670) About Me 

Question 189185: ONE EIGHTH OF THE SQUARE ROOT OF 7 LESS THAN A NUMBER IS 2. WHAT IS THE NUMBER?
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 189181: SIMPLIFY. EXPRESS IN SIMPLEST RADICAL FORM.
SQUARE ROOT OF 25a^2b^2

Click here to see answer by Mathtut(3670) About Me 

Question 189375: i need your help to find the square root of 200

Click here to see answer by checkley75(3666) About Me 
Question 189375: i need your help to find the square root of 200

Click here to see answer by feliz1965(151) About Me 

Question 189390: I need to simplify:
sqrt300/49

Click here to see answer by Mathtut(3670) About Me 

Question 189564: i took a test and scored low , but a question that am not sure about is when my professor asked " what should I multiply 2/cube 2x square by,to rationalize the denominator? the answer is cube 4x Why isnt it 8 cube x
thank and have nice day jay


Click here to see answer by jim_thompson5910(35256) About Me 

Question 189810: SIMPLIFY. EXPRESS IN SIMPLES RADICAL FORM.
3/5

Click here to see answer by solver91311(24713) About Me 

Question 189840: Please explain how to solve 3√w+1=6.
Click here to see answer by nerdybill(7384) About Me 
Question 189840: Please explain how to solve 3√w+1=6.
Click here to see answer by jim_thompson5910(35256) About Me 

Question 189959: Find the roots of y=x^9-x^7-8x^6-16x^5+8x^4+16x^3+128x^2-128

Click here to see answer by stanbon(75887) About Me 

Question 190074: I am having trouble with a word problem. Here it is:
What is the smallest counting number n so that the
square root of 2n is a multiple of 3?
I think the answer is 18 but I do not know how to show all work.
I think the square root of 2n has to be divisible by 3 but it also
has to be divisible by 2. 6 would be the smallest divisible by 2 and 3.
Thanks. JCE
This did not come out of the book.

Click here to see answer by solver91311(24713) About Me 

Question 190431: simplify: 5 square root of 18 divided by 2 square root of 5
Click here to see answer by Mathtut(3670) About Me 

Question 190458: Hello helper, this is a square root equation with 2 parts. Thanks for the help.
Suppose that N=sqrt(x+4)models the number of cases of an infection, in millions, of a disease x years from now.
1.Approximately how many cases of the infection will there be 16 years from now?
2.In approximately how many years will there be 6 million cases?

Click here to see answer by vleith(2983) About Me 

Question 190479: Can you please help me solve this? cubed root of 9 times cubed root of 3
Click here to see answer by Alan3354(69443) About Me 

Question 190482: Can you please help me solve this? I have to simplify each radical. square root of 9 over 25
Click here to see answer by solver91311(24713) About Me 

Question 190484: Can you please help me solve this? I have to simplify each radical. cubed root of -27 over 8
Click here to see answer by Alan3354(69443) About Me 

Question 190485: Can you please help me solve this? I have to simplify each radical. fourth root of (y^12) over (16)
Click here to see answer by Mathtut(3670) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380