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

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Question 849585: Solve the equation.

4x2 � 8 = 56
Click here to see answer by Alan3354(69443)

Question 849582: Solve the equation. If necessary, round your answer to the nearest tenth.

x^2 = 196
Click here to see answer by Alan3354(69443)

Question 850038: What is the inverse of this function ?
f(x)= -√(x+5)+3
Thanks for any help.

Click here to see answer by jim_thompson5910(35256)

Question 850038: What is the inverse of this function ?
f(x)= -√(x+5)+3
Thanks for any help.

Click here to see answer by josgarithmetic(39613)

Question 850425: y2-16y+63
Click here to see answer by Seutip(231)

Question 850432: m2+4m-32
Click here to see answer by checkley79(3341)

Question 850430: d2+10d-24
Click here to see answer by checkley79(3341)

Question 850214: how do you simplify the square root of xy to the 8th power?
Click here to see answer by ankor@dixie-net.com(22740)

Question 851201: cuberoot of (a^3b^7z^3)
Click here to see answer by ewatrrr(24785)

Question 851202: using the square root method how do I solve
X squared -64=0
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Question 853082: square root of 7 divided by the square root of 3
Click here to see answer by richwmiller(17219)

Question 853139: Factor as completely as possible with integral coefficients and integral exponents
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Question 853139: Factor as completely as possible with integral coefficients and integral exponents
Click here to see answer by Edwin McCravy(20054)

Question 853133: Given that , find
Click here to see answer by Alan3354(69443)

Question 853138: Factor Cometely:
Click here to see answer by Fombitz(32388)

Question 854390: the volume of a cone is 108 cubic inches its height is 4 inches what is it radius
Click here to see answer by ewatrrr(24785)

Question 854540: What is the square root of 72 ?

Click here to see answer by Alan3354(69443)

Question 854540: What is the square root of 72 ?

Click here to see answer by lenny460(1073)

Question 856084: simplify the square root of 18x^7?
Click here to see answer by Fombitz(32388)

Question 856604: Solve for x: sqrt sqrt sqrt x=2
Click here to see answer by Fombitz(32388)

Question 856704: Hello,
I know the answer is 14 to the following problem but I can't figure out how to solve it:

I first tried to square both sides:

simplify:
--->
--->

Now what??? square both sides again?
Thanks.

Click here to see answer by jim_thompson5910(35256)

Question 857101: express root of 48 in the form root of b where a is an integer

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Question 857123: 4th root of 2/9

Click here to see answer by Alan3354(69443)

Question 857469: What is 7 square root 6?
Click here to see answer by Alan3354(69443)

Question 857464: What is the multiplied power in 4z^5* 9z^-12

Click here to see answer by Fombitz(32388)

Question 858097: What are the roots of the equation x^2-2x-1=0
Click here to see answer by rothauserc(4718)

Question 858840: What's the square root of 169 over 49?
Click here to see answer by josgarithmetic(39613)

Question 858838: Please help me determine the number of real roots of 7x^2-18x+12
Click here to see answer by josgarithmetic(39613)

Question 859005: If x = square root 5 + square root 8, find x + 1 over x giving answers in surd form with rational denominators
Click here to see answer by Awesom3guy(31)

Question 859994: radical 24 + 5 radical 6 - radical 54
Click here to see answer by ankor@dixie-net.com(22740)

Question 860154: Simplifying square roots of negative numbers.
2 sqr(-9) times 4 sqr(-16)

Click here to see answer by ewatrrr(24785)

Question 848096: 4m^2+2=6
Click here to see answer by tommyt3rd(5050)

Question 860470: Simplify -2 (72x^8 to the 3-th root)
Click here to see answer by KMST(5328)

Question 860474: Simplify: (-3(54 to the 3-th root)) - (3(2 to the 3-th root))
Click here to see answer by KMST(5328)

Question 860943: can someone pls simplify this
(c*3c^3)^2
i tried and simplified the ans was
3cc^6
is it correct if not pls help me
Click here to see answer by Fombitz(32388)

Question 861281: Solve the question by completing the square. 4x^2-5x+1=0. I keep messing the answer up. The answer should be x=1 and x=1/4
Click here to see answer by richwmiller(17219)

Question 861392: What are the solutions to the equation y� �1 = 24?
Choose all answers that are correct.

A.
5

B.
12.5

C.
�5

D.
�12.5

Click here to see answer by Fombitz(32388)

Question 861551: Surds:
why is surd 75 minus surd 12
3 root 3 ?
Click here to see answer by fcabanski(1391)

Question 7995: What is the square root of 100 ?

Click here to see answer by lenny460(1073)

Question 861773: sqrt(128/147)
Click here to see answer by ewatrrr(24785)

Question 862220: f(x)=ax+b
WARNING : THE PROBLEM IS EXTREMELY HARD
1. (I have already solved it!!!) ... f(x) crosses point A(-1;-1) and f(x) is || g(x)=3x-4 ... find 'a' and 'b'!
I FOUND that a=3 and b=2 that was the first condition

2.Using 'a' and 'b' solve the problem : = I CAN"T SOLVE THIS ONE ; I THINK ABOUT 1 HOUR AND I COULDN'T THINK OF ANYHTING ; PLEASE HELP
http://postimg.org/image/jpgeqpjuh/

Click here to see answer by Fombitz(32388)

Question 862806: Solve.
∛44x=-4
Click here to see answer by ewatrrr(24785)

Question 862791: ∛(320/27)-∛320/7
Click here to see answer by Alan3354(69443)

Question 863030: please tell me that root 2 is irrational???
Click here to see answer by Alan3354(69443)

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