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

Tutors Answer Your Questions about Square-cubic-other-roots (FREE)

Question 926794: Determine the values of k if the roots of the equation are non - real

Click here to see answer by Fombitz(32388)

Question 926863: Determine the nature of the roots of:

Click here to see answer by ewatrrr(24785)

Question 927348: I am having trouble solving this problem. sqrt(x+2)(x-6)=x-5.....the (x+2) and (x-6) are both under the same square root.
Click here to see answer by srinivas.g(540)

Question 927416: if a�+b�=25 & a�+b�=91
then, (a+b)= ?
Click here to see answer by stanbon(75887)

Question 927775: I'm trying to figure out how to find the square root of 49x^8 and simplify
Click here to see answer by stanbon(75887)

Question 927801: Square root (1-x) (squared) + (6-y) (Squared) equals to root 40 (Basically the distance formula with the answer)
I need to try find x and y
is this equation possible to find the two unknown value?
Click here to see answer by Alan3354(69443)

Question 928080: if a�+b�=91& a�+b�=25. ?????how a=3 &b=4 ?????

Click here to see answer by 428225(90)

Question 928104: 3root16/3root4
Click here to see answer by MathLover1(20849)

Question 928102: 3root5/3root25
Click here to see answer by MathLover1(20849)

Question 928103: root15xxxxyy/root3xyyyz
Click here to see answer by MathLover1(20849)

Question 928782: Division: sqrt(2x)/(sqrt8x-sqrt32)
Click here to see answer by MathLover1(20849)

Question 929325: find the smallest 4-digit number perfect square.
Click here to see answer by Fombitz(32388)

Question 929583:
Assume all variables present are real numbers
Simplify
Click here to see answer by LinnW(1048)

Question 930023: inverse of f(x)= cubic root of x+4
Click here to see answer by algebrapro18(249)

Question 930277: A,B,&C are employed to do a piece of work for Rs.529. A&C are supposed to finished 19/23 of the work together. How much shall be paid to B?
Click here to see answer by ewatrrr(24785)

Question 931108: how to factor (5n^2 +3)(n-2)
Click here to see answer by Edwin McCravy(20054)

Question 931108: how to factor (5n^2 +3)(n-2)
Click here to see answer by MathLover1(20849)

Question 931105: how to factor 5x^3-75x
Click here to see answer by ewatrrr(24785)

Question 931344: Sqrt(4){ sqrt(9)+ sqrt(16)}
Click here to see answer by MathLover1(20849)

Question 931481: if 2x+3y =8 and xy=2 find 4x squred + 9y squred
Click here to see answer by Fombitz(32388)

Question 931479: if 2x+3y =8 and xy=2 find 4x squred + 9y squred
Click here to see answer by Fombitz(32388)

Question 931865: 1.) sqrt of 2b times sqrt of 5a+3b
2.) sqrt of x+4y times sqrt of 2x-5y
3.) sqrt of 75x^4 divided by sqrt of 3

Click here to see answer by ewatrrr(24785)

Question 932554: Simplify
Click here to see answer by Fombitz(32388)

Question 932551: Simplify
Click here to see answer by Fombitz(32388)

Question 932750: Please help me solve 2x^2=3x+9
Click here to see answer by TimothyLamb(4379)

Question 932781: Please help me solve 10x^2+3x=4
Click here to see answer by ankor@dixie-net.com(22740)

Question 934075: solve by using the square root property.
d^2 � 36 = 0
Click here to see answer by MathLover1(20849)

Question 934076: solve by using the square root property.
m^2 � 25 = 0
Click here to see answer by MathLover1(20849)

Question 934063: solve by using the square root property.
(5m � 6)^2 = 7
Click here to see answer by MathLover1(20849)

Question 934074: solve by using the square root property.
9x^2 � 25 = 0
Click here to see answer by josgarithmetic(39616)

Question 934064: solve by using the square root property.
(2k - 5)^2 = 16
Click here to see answer by ankor@dixie-net.com(22740)

Question 934273: Simplify- square root of 5 over cube root of 5
Click here to see answer by Alan3354(69443)

Question 934445: What is 4 root 3 times 3
Click here to see answer by Fombitz(32388)

Question 934438: (x^2+x-2)(x+2i)
Click here to see answer by Fombitz(32388)

Question 934496: 12 cube root (2) - 7 cube root (512)
Click here to see answer by Alan3354(69443)

Question 934495: 12 cube root 2 - 7 cube root 512
Click here to see answer by Alan3354(69443)

Question 903855: Write the expression in the form a + bi, where a and b are real numbers.
sqrt(-1)/( sqrt(-81)sqrt(-36))

Click here to see answer by tommyt3rd(5050)

Question 890438: root 5 + 2* root 3 mutiply with 7 + 4*root 3
Click here to see answer by tommyt3rd(5050)

Question 936243: How to solve
Click here to see answer by rothauserc(4718)

Question 936674: cost of a borehole is �400 for the first meter and increases by �25 for each successive meter, calculate the cost of the borehole if it is 24 m deep.
Click here to see answer by TimothyLamb(4379)

Question 936684: Hello again I need to complete this task:
the illuminance E at a point on a surface is given by the formula E=I/d^2
Where E=Illuminance in Lux
I= luminointensity of the light cource in candelas
d=distance in meters
Rearrange this formula to make d the subjet and find the value of d given that E=25 Lux and I=100 candelas.
This is my way how i do it:
E=I/d^2
25=100/d^2
d^2=100/25
d^2-4
2^2=4
and my tutor write to me "Incorrect, you have not follow the full process"
Please correct my work I not sure what i do wrong.
Thank You
Click here to see answer by Fombitz(32388)

Question 936682: Hello again I need to complete this task:
the illuminance E at a point on a surface is given by the formula E=I/d^2
Where E=Illuminance in Lux
I= luminointensity of the light cource in candelas
d=distance in meters
Rearrange this formula to make d the subjet and find the value of d given that E=25 Lux and I=100 candelas.
This is my way how i do it:
E=I/d^2
25=100/d^2
d^2=100/25
d^2-4
2^2=4
and my tutor write to me "Incorrect, you have not follow the full process"
Please correct my work I not sure what i do wrong.
Thank You
Click here to see answer by Fombitz(32388)

Question 937205: Simplify square root of minus sqrt 3 plus sqrt 3 plus 8 sqrt 7 plus 4 sqrt 3
Click here to see answer by Alan3354(69443)

Question 937499: Express 10/root of 5 in the form k root of 5 where k is an integer .
Please explain each step

Click here to see answer by josgarithmetic(39616)

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