Questions on Algebra: Negative and Fractional exponents answered by real tutors!

Tutors Answer Your Questions about Exponents-negative-and-fractional (FREE)

Question 61095: which one of these numbers are prime and how do i show my work?
12,31,99,1
i think 1 is prime because you only have 0,1
Click here to see answer by venugopalramana(3286)

Question 61095: which one of these numbers are prime and how do i show my work?
12,31,99,1
i think 1 is prime because you only have 0,1
Click here to see answer by praseenakos(2)

Question 61951: 40.5b-7 what;s the answer?
Click here to see answer by stanbon(57323)

Question 62006: simplify
(4kx-4kx^2)/4kx
Click here to see answer by funmath(2925)

Question 62009: help me to simplify
3x^2m^5(2x^4m^2) / 3x^2m^5m^-4
Click here to see answer by Cintchr(481)

Question 62245: please help!
Simplify
(3x^-2 / y^-3)^-2 (x^4/y^6)^2
Click here to see answer by funmath(2925)

Question 62244: HELP PLEASE!
Simplify :
3x^2m^5(2x^4m^2) divided by 3x^2m^5m^-4
Click here to see answer by funmath(2925)

Question 62415: My last problem please help!!!
(x^0y^2)^-2 y^5x / x^2x^-5yy^-3
Click here to see answer by uma(370)

Question 62524: Please help me with my final problem for this UNIT!!!
Add
2 / 3x^4 - 1 / 3x^2y + a / 2x^3p
THANK U!

Click here to see answer by stanbon(57323)

Question 62645: help would be appreciated
solve
-5 - 3^2 - 3(x - 2) = 3[(x - 2)3-4]
Click here to see answer by stanbon(57323)

Question 62645: help would be appreciated
solve
-5 - 3^2 - 3(x - 2) = 3[(x - 2)3-4]
Click here to see answer by checkley71(8403)

Question 62643: Help would be appreciated
Simplify
-4^2 + (-2)^4 - 3^3 - absolute vale of -4 - 4
Click here to see answer by stanbon(57323)

Question 62642: Please help me solving the following
simplify
-2^-3 - 3/-3^-2 - 3^0
thank u
Click here to see answer by stanbon(57323)

Question 62641: please help!!
Simplify
-5^0[-3^3 - 3(-3-2)](-4^0)
Click here to see answer by stanbon(57323)

Question 62640: I would apprecaite some help with the following :
Simplify
3(m^-3)^-2 nm^3n^-1 / mm^2m^0m^-7(m^3)^3
Click here to see answer by funmath(2925)

Question 62639: Please help me!

Click here to see answer by funmath(2925)

Question 62638: I need help please!!
Solve by adding like terms :
-3xy + 8xy^-1x^0 / y^-2 - 3x^2x^-1x / (x^-1)^-1
Thank u!
Click here to see answer by funmath(2925)

Question 62687: -3a^b * 14a^3b^2
----- --------
35a^5 -9b^4
I think I simplify first then multiply but I'm not sure. I am not sure what I should do first.
Click here to see answer by checkley71(8403)

Question 62683: I hope this is in the right section.
13. divide
x^3+2x^2+x+12/x+3
I got as far as the first part. x^2 which gives us x^3 +3x^2. Do I add the 2x^2 to the 3x^2, giving me 5x^2 . If I am correct I didn't know what to do next with the x.
Click here to see answer by ankor@dixie-net.com(15649)

Question 62690: 24. Divide
2x-6 divide 5x-15
---- -----
21 12

I think I factor. I did
2(x-3) divide 5(x-3)
------ -----
21 12
Now what do I do?
Click here to see answer by ankor@dixie-net.com(15649)

Question 62693: Add. Express your answer in simplest form.
x-13 + 3x-3
---- -----
x^2-x-12 x^2-x-12
the denominator is the same, so I'm sure this is simple and I am making harder than it is.
Click here to see answer by stanbon(57323)

Question 62875: will you please help me understand how to solve this problem:
Click here to see answer by funmath(2925)

Question 63011: Simplify each expression, if possible
(81c^4)^-3/2
Click here to see answer by funmath(2925)

Question 63033: helP! :)
Evaluate :
a^2 - ya - y(a-y) if y = -3 nad a = 1/3
Click here to see answer by stanbon(57323)

Question 63032: please help me to
Simplify by adding liek terms :
-4ax/y + 6a^3a^-2y^-1 / x - 5y^-1a^-3 / a^-4x^-1
Click here to see answer by stanbon(57323)

Question 63030: to divide monomials and simplify expressions with negative exponents
(9ab^-2)^-2/(8a^-2b)^-2*(3a^-2b)^3/(2a^2b^-2)^3
Click here to see answer by Cintchr(481)

Question 63027: please help!!
-2^0(m^0 - 2) - 3(m - 3)= -2(m + 3^0)
Click here to see answer by funmath(2925)

Question 63166: please help me solve this problem
4^n=32^n-1
Click here to see answer by stanbon(57323)

Question 63404: please help me with :
simplify
a^0 - 64/2^4 - (-3)^0 - 3^0 - 2[(-3-2^0) - (-3-2)]
Click here to see answer by 303795(595)

Question 63574: Please help me to simplify
4^0 - 64/2^4 - (-3)^0 - 3^0 - 2[(-3-2^0) - (-3 - 2)]
thank u
Click here to see answer by 303795(595)

Question 63600: Hi I am not sure how to solve this problem, please help, thanks.

Click here to see answer by stanbon(57323)

Question 63870: The problem I am trying to solve is -n + 0.4n + 1.8 = -4.2. I think that I need to add the 2 n's together, but I am not sure how, since one is negative, and there is no value is it 0? So would it just be .4n? or -.4n? Then I think I need to add -1.8 to each side, which would then be .4n = -6.0 and the answer would be -15. Am I on the right track?
Click here to see answer by stanbon(57323)

Question 64237: Simplify
(-8)^-5/3
Click here to see answer by 303795(595)

Question 64376: Expand
(x - 2)^3
Click here to see answer by stanbon(57323)

Question 64365: simplify
3ac/x^2 + 2 / z^2
DIVIDED BY
1 - 4/ x^2z^2
Click here to see answer by ankor@dixie-net.com(15649)

Question 64695: please help to simplify
1 / -16^-3/4
Click here to see answer by stanbon(57323)

Question 64848: simplify
1 / -27^-2/3
Click here to see answer by funmath(2925)

Question 64837: please help to simplify
2x^2/a + a
DIVIDED by
y^2/a - 3a

Click here to see answer by ankor@dixie-net.com(15649)

Question 65127: A small airplane coming in for a landing descends 5/66mi/min. About how long does it take to descend 4,000 ft. (Hint 1 mi=5,280 ft)
Click here to see answer by 303795(595)

Question 65142: this is all in paraenthesis.
on top : 4x squared y to the third m to the fifth
on bottom : 3x to the fifth m to the first
Click here to see answer by stanbon(57323)

Question 64687: please help to simplify :
x^3 - 5x^2 - 24x / x^2 - 9 * x^2 + 3x - 18 / x^3 - 11x^2 + 24x
thank you
Click here to see answer by checkley71(8403)

Question 65441: Simplify
1 / -16^-5/4
Click here to see answer by funmath(2925)

Question 65541: Simplify
x + (3b/x + 2/b)
Click here to see answer by stanbon(57323)

Question 65367: SIMPLIFY:
(3x^2/3y^1/2)^6
_____________
(6x^2y^4/3)
Click here to see answer by funmath(2925)

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