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

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Question 435962: Find the instantaneous rate of change of s(t) = t^2 + 4 at t = 6.

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Question 436018: x2+4x=16 what is the solution?
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Question 436297: simplify: (3+i)(l-i)
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Question 436296: simplify: sqrt 12x^3 y/ sqrt 20x^5 y
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Question 436259: The boys of a school can be arranged in 12,15 and 18 equal rows and also into a solid square. what is the least number of boys that the school can have?(Hint: find LCM)
Click here to see answer by jorel1380(2518)

Question 436687: I need help with limits and cant find a section...
Find the following limit:
lim (x^2+2x-15)/(x-3)
x->3

I think the limit might be 7, but really unsure. Thank you!!
Click here to see answer by stanbon(57323)

Question 436928: 256/2401
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Question 437131: square root of u-3=8
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Question 437317: absolute value of x^2-8 =5 solve the absolute value equation?
Click here to see answer by shree840(260)

Question 437316: 3x^3-6x^2-3x+6=0 find all real and imaginary solutions
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Question 437315: (x-1)^-1/3=1/2 find all real solutions
Click here to see answer by shree840(260)

Question 437314: (4y-4)^2+10(4y-4)+21=0 find all real and imaginary solutions to the equation
(4y-4)^2+40y-40+21=0
(4y-4)^2+40y+-19=0
(4y-4)^2+40y-19=0
0=0

Click here to see answer by dy5841(1)

Question 437639: perfect square that will divide into 63 evenly
Click here to see answer by robertb(4012)

Question 437737: Im trying to find out what 1 divided by the cubed root of 7 is?
Click here to see answer by Alan3354(30993)

Question 437749: (3square root 5 -6square root 3)(5square root 5 +10square root 3)
Click here to see answer by ewatrrr(10682)

Question 437716: 1 7/9
Click here to see answer by Alan3354(30993)

Question 437838: what is the √2+√3/√3-√2?
Click here to see answer by nerdybill(6958)

Question 438118: Simplify √ 45
√ 16/25
√ 8*√ 9/20
√ 10/32
√ 9/16
Click here to see answer by MathLover1(6627)

Question 438137: square root of 16x^6=?
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Question 438283: (x+9)^2=18
Click here to see answer by Alan3354(30993)

Question 438533: square root of 13

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Question 438848: Solve by complete factorization? 〖2x〗^4-〖10x〗^3+ 14x^2
Any help would be appreciated?
The solutions I have are: 2x^2(x^2-5x+7) AND (x-4)(x+1)
Unsure which is correct, if either one.

Click here to see answer by Gogonati(809)

Question 438894: what is the square root of 12 + 3 with the square root of 128 over 6

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Question 438941: the area of a square is 900 ft^2. what is the length of a side?
Click here to see answer by ewatrrr(10682)

Question 439021: the square of a negative number is 48 more than twice the negative number. find the number
Click here to see answer by rwm(914)

Question 439291: Hi,
I've been out of school for 2 years and I cannot remember how to do the cube root of numbers.
The problem I have asks what is 4 times the cube root of 81.
Click here to see answer by Edwin McCravy(8908)

Question 439339: Use the square root property to solve the equation
(x + 8)^2 = 81
What is the solution set?
Can someone explain to me how to do this? Thanks

Click here to see answer by stanbon(57323)

Question 439408: What would the square root of x times the square root of x equal?
Click here to see answer by edjones(7569)

Question 439408: What would the square root of x times the square root of x equal?
Click here to see answer by shantalboodram(15)

Question 439359: what is 10 squared
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Question 439285: solve and check 12+square root of x+5=9
Click here to see answer by edjones(7569)

Question 439864: what is the aproximate square root 180 to the nearest thousant?
Click here to see answer by Alan3354(30993)

Question 439865: The square root of a whole number that is not a perfect square is a(an)__________number?
Click here to see answer by MathLover1(6627)

Question 439865: The square root of a whole number that is not a perfect square is a(an)__________number?
Click here to see answer by Alan3354(30993)

Question 440696: What is the fifth term of a sequence whose first term is 5 and whose common ratio is 3?

Click here to see answer by Euler(11)

Question 441104:
Click here to see answer by Euler(11)

Question 441369: problem is 10x^3y²z divided by 5xyz=
how do i solve this??
Click here to see answer by ewatrrr(10682)

Question 441774: Simplify. Express in simplest radical form. DO NOT USE A TABLE OR CALCULATOR
1.) √2 + √2/49
2.) (√2-3)(√2+3)
3.) ( √3- √5)( √3- √5)
Click here to see answer by robertb(4012)

Question 441834: Solve:
sq rt of 3x-5 - sq rt of x+2 = 1
Click here to see answer by htmentor(789)

Question 441911: simplify : the square root of 8y^6
Click here to see answer by Gogonati(809)

Question 442060: I am having a problem solving this equation: I need to factor this but am getting nowhere. Is it not factorable?
Click here to see answer by solver91311(16877)

Question 442442: 5 - sqrt{175}
__________________
10
Click here to see answer by swincher4391(726)

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