Tutors Answer Your Questions about Radicals (FREE)
Question 72949: What values for x must be excluded in the following fraction?
I needed to verify that I got this one right, I got an answer of -3 for this one. Is this correct? Thanks in advance for double checking this for me.
Click here to see answer by stanbon(75887)  |
Question 73007: How would someone describe this topic, I am new to algebra? Any assistance would be greatly appreciated... Thank you
While the radical symbol is widely used, converting to rational exponents has advantages. Explain an advantage of rational exponents over the radical sign. Include in your answer an example of an equation easier to solve as a rational exponent rather then a radical sign.
Click here to see answer by jim_thompson5910(35256) |
Question 73084: For the equation x-radicalx=0 , perform the following:
a) Solve for all values of x that satisfies the equation.
Answer:
Show work in this space
b) Graph the functions y=x and y=radicalx on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
Graph
c) How does the graph relate to part a?
Answer:
Click here to see answer by stanbon(75887) |
Question 73162: I need help in answering this question (sorry if it is hard to understand, I don't know how to get the square root sign on the computer) any help would be greatly appreciated
2 square root 3-5/square root 2+4 square root 6
Click here to see answer by diluzion(5) |
Question 73433: I don't know how to write out the problem, but I'll try my best so you can understand it. The problem I have is -3 square root of 20 times square root of 15. The answer I came to was -30 square root of 3. Is this correct?
Click here to see answer by Cintchr(481) |
Question 73433: I don't know how to write out the problem, but I'll try my best so you can understand it. The problem I have is -3 square root of 20 times square root of 15. The answer I came to was -30 square root of 3. Is this correct?
Click here to see answer by bucky(2189) |
Question 73435: I need help. I tried to solve the following radical expression but think it;s wrong... 2 square root of 18 times 7 square root of 6. The answer I ended up with was 84 square root of 3. Is this right? Also, is there a shorter way to write square root in computer language? Thank you.
Click here to see answer by Cintchr(481) |
Question 73436: How can I solve 2 square root of 7t times square root of 14t? I came out with 2 square root of 98t squared, then 2 square root of 49 times 2t squared followed by 2 times 7 square root of 2. My answer was 14t square root of 2. Is this correct? I don't know how to write out the problem, I hope this is okay.
Click here to see answer by bucky(2189) |
Question 73641: solve the radical equation
[sq.rt.of(x-4)] + [sq.rt.of(x+4)] = 4
[sq.rt.of(x-4)] = 4 - [sq.rt.of(x+4)]
[sq.rt.of(x-4)]^2 = {4 - [sq.rt.of(x+4)]}^2
(x-4) = 16 - 8[sq.rt.of(x+4)] + (x+4)
x-4 - (x+4) - 16 = -8[sq.rt.of(x+4)]
-24 = -8[sq.rt.of(x+4)]
3 = [sq.rt.of(x+4)]
3^2 = [sq.rt.of(x+4)]^2
9 = x+4
x = 5
check by substituting X=5 in the given problem
[sq.rt.of(x-4)] + [sq.rt.of(x+4)] is it = 4
[sq.rt.of(5-4)] + [sq.rt.of(5+4)] is it = 4
[sq.rt.of(1)] + [sq.rt.of(9)] is it = 4
1+3 is it = 4
4=4; then the solution set is {5}
Click here to see answer by srhjnqcbng11(1) |
Question 73823: Can you help me. I have an exam tomarrow. I forgot how to simplify radical expressions. One of the problems I am having trouble with is:
3?(2a^(7)b^(2))
--------------------
(2) 3?(5x^(7)y)
(I do not know how to make cubed roots; the index is three.)
I know the answer is:
(y) 3?(150x)
--------------------
10x^(2)
please show me how
thank you so much!!
Click here to see answer by stanbon(75887) |
Question 73880: can someone show me the steps and explain them to me why they did that.
Someone solved it here but i don't undestand it because its all crammed up...
9.2 # 48
Use the properties for radicals to simplify each of the following expressions. Assume that
all variables represent positive real numbers.
radical (12x^3)/(5)
Click here to see answer by stanbon(75887) |
Question 73878: I need help I do not understand how to solve them ..Can someone show me step by step please....chapter 9 sect.9.4 # 28
Perform the indicated multiplication. Then simplify each radical expression.
Problem #28
radical (7) (2radical(3) + 3 radical (7) )
Click here to see answer by stanbon(75887) |
Question 74560: decide all values of b in the following equations that will give one or more real number solutions.
a) 3x^2 + bx - 3 = 0
b) 5x^2 + bx + 1 = 0
c) -3x^2 + bx - 3 = 0
d) Write a rule for judging if an equation has solutions by looking at it in standard form.
I do not understand how can find these solutions.
Please show work
Click here to see answer by josmiceli(19441)  |
Question 74931: can someone correct them for me thanks....ahead....
Use Property 1 to simplify each of the following radical expressions. Assume that all variables represent positive real numbers.
Problem #2
radical(50)
My answer: 5radical(2)
Problem#24
radical (72x^3)
MY answer:
6xradical(2x)
Problem #36
Use Property 2 to simplify each of the following radical expressions.
radical ((10)/(49))
My answer:
(radical (10))/(7)
Click here to see answer by funmath(2933) |
|
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
|
