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

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Question 806894: Hi! So i have a question about adding radicals. I was gone for this day so i am not sure how to do it.
add [(x+5)/(x-2)]+[(-10x-36)/(x^2+4x-12)]

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

Question 807441: Use the formula x = -b+- square root b^2-4ac to solve the equation 3x^2 = 2x+5
Click here to see answer by mananth(16946) About Me 

Question 807436: Square root 5 (square root 5 - square root 2) + square root 2 (square root 8)
Click here to see answer by mananth(16946) About Me 

Question 807265: what is the exact value of 1/(-1024)^0.2 ?
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 807620: (-243)^(0.6)=?
...am getting different answers from different websites from -27 to
-8.34345885 + 25.6785259 i from wolframalpha.com and google.com.
What is the correct answer and why?

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

Question 807267: what is the value of (-3/2)^-3 ?
Click here to see answer by tommyt3rd(5050) About Me 

Question 807891: i'm stuck solving for "D" in this problem.
c=54*{D^-(1/3)}*b
thank you for any and all help

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

Question 807927: evaluate each expression that results in a
rational number.(9/16)^1/2

Click here to see answer by MathLover1(20849) About Me 

Question 807931: write in a completely factored form relative to
the integers. 2x(x-4)^3 + 3x^2(x-4)^2

Click here to see answer by richwmiller(17219) About Me 

Question 808387: Write each as a radical in simplest form. Eliminate negative exponents
n^15/7

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

Question 809343: I'm not sure if it is radicals or not but we've been doing them in school lately. I have to take a chapter 3 pre-test. Can you see if I can get the problems for them please? Thanks
Click here to see answer by Alan3354(69443) About Me 

Question 809355: How would I write 4sqrt%28a%5E3b%29 in exponential form?
I believe that the answer is a%5E3b%5E%281%2F4%29

Click here to see answer by josmiceli(19441) About Me 
Question 809355: How would I write 4sqrt%28a%5E3b%29 in exponential form?
I believe that the answer is a%5E3b%5E%281%2F4%29

Click here to see answer by MathLover1(20849) About Me 

Question 809350: How would I write +r%5E%282%2F5%29t%5E%281%2F5%29+ in radical form?
I believe that the answer is +3r%28rt%29+

Click here to see answer by MathLover1(20849) About Me 

Question 809666: Please help me solve this and write it in standard form: (-2+sqrt-11)^2
Click here to see answer by rothauserc(4718) About Me 

Question 809770: My son asked for help and I am at a loss to explain the steps to simplifying. Please show me the steps in hopes I can explain to him and it will trigger an understanding.
Two problems:
Simply Sqrt(2)*cuberoot(2^4)
(Ab^-2)^-1/3

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

Question 810457: (4+i√5)+(8+6i√5)
Click here to see answer by oscargut(2103) About Me 
Question 810457: (4+i√5)+(8+6i√5)
Click here to see answer by mananth(16946) About Me 

Question 810804: How do I solve this
√80x^2y^5

Click here to see answer by oscargut(2103) About Me 

Question 811045: SIMPLIFY 64^4/6
Click here to see answer by erica65404(394) About Me 

Question 811092: Hello, I'm having trouble with this:
+sqrt%282%29%2F2+-++sqrt%283%29%2F3+-+sqrt%282%29+
thanks.

Click here to see answer by erica65404(394) About Me 

Question 811120: %28sqrt%282%29%2F2-1%29%2F%28sqrt%282%29%2F2%2B1%29
thanks

Click here to see answer by Alan3354(69443) About Me 
Question 811120: %28sqrt%282%29%2F2-1%29%2F%28sqrt%282%29%2F2%2B1%29
thanks

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

Question 811112: Hello, can you help with:
+%28sqrt%282%29%2F2+-1%29+%2F+%28sqrt+%282%29%2F2+%2B1%29+
Thanks.

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

Question 811480: Please help me solve simplify this radical:
27^-2/3 / 27^-1/3

Click here to see answer by Simeonkay(7) About Me 

Question 812049: What is the exact value of the expression the square root of 9 times y to the fourth power. + 12the square root of y to the sixth power. − 3the square root of y to the sixth power. − the square root of y to the fourth power.? Simplify if possible.
Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 812736: How do you simplify the square root of 72 divided by 5?
Click here to see answer by stanbon(75887) About Me 

Question 812968: how do you solve the equation by completing the square. z2+5z-6=0 (z is squared)
Click here to see answer by ewatrrr(24785) About Me 

Question 812926: (8 MINUS SQUARE ROOT OF 7)^2
Click here to see answer by jsmallt9(3758) About Me 

Question 813021: Simplify.
√300

Click here to see answer by ewatrrr(24785) About Me 

Question 813023: Simplify
√24x^3

Click here to see answer by ewatrrr(24785) About Me 

Question 813297: Simplify
3√2/54
I pushed alt 251 to make a square root key.
Thank you

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

Question 813295: Simplify.
-√20x^6y^7z^12
I pushed alt 251 to make the square root key.
Thanks

Click here to see answer by ewatrrr(24785) About Me 

Question 813403: Simplify
√64x^5 divided by √2x^3
I pushed alt 251 to get the square root key.
Thank you

Click here to see answer by MathLover1(20849) About Me 
Question 813403: Simplify
√64x^5 divided by √2x^3
I pushed alt 251 to get the square root key.
Thank you

Click here to see answer by ewatrrr(24785) About Me 

Question 813745: √(x-3)+ √(x+5)= 4
Thanks so much in advance:)

Click here to see answer by josgarithmetic(39616) About Me 
Question 813745: √(x-3)+ √(x+5)= 4
Thanks so much in advance:)

Click here to see answer by MathTherapy(10551) About Me 

Question 813842: x^4 + 3 √x = 10
Thanks so much in advance:)

Click here to see answer by ewatrrr(24785) About Me 

Question 813901: 3√27x^6/y^12
It's the cubed root of 27x to the sixth power divided by "y" to the twelveth power and simplify.

Click here to see answer by ewatrrr(24785) About Me 

Question 813902: (3 times the cubed root of 16) plus the (cubed root of 54) Simplify.
Click here to see answer by ewatrrr(24785) About Me 

Question 813915: (√y+√6z)(√2z-√8y) Simplify
Click here to see answer by ewatrrr(24785) About Me 

Question 813988: Please help me solve this equation: +sqrt%28x%29=15
Click here to see answer by ewatrrr(24785) About Me 

Question 813989: Please help me solve this equation: sqrt%282-x%29-x=6
Click here to see answer by Alan3354(69443) About Me 

Question 814304: 3sqrt-48x^13y^14
Click here to see answer by ewatrrr(24785) About Me 

Question 814620: √3y(√27y^2-√y) Simplify

Click here to see answer by LinnW(1048) 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, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710