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

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

Question 253295: 5x^(2/5)-7x^(1/5)+2=0
Click here to see answer by JimboP1977(311)

Question 253296: x^(2/7)-3x^(1/7)-10=0
Click here to see answer by drk(1908)

Question 247669: what is the solution of this problm.
1000*[1-(1+0.05)^-5/0.05
Click here to see answer by richwmiller(17219)

Question 253294: x^(2/3)-15x^(1/3)+26=0
Click here to see answer by palanisamy(496)

Question 253506: use rational exponents to write as a single radical expression x^(1/6)*y^(1/3)*z^(1/4)
Click here to see answer by drk(1908)

Question 253856: fractions
1/3s=7/9=4/3s
1/3s= -7/9+4/3s
1/3s-4/3s=-7/9
-s=-7/9
is this right?
Click here to see answer by drk(1908)

Question 253863: fractions
x/2-x/3=5
15x-10x=150
5x=150
x=30
is this the right answer
Click here to see answer by Alan3354(69443)

Question 253861: 9-2m/7=19
63-2m=133
-2m=70
m=-35
is the correct answer m= -35?
Click here to see answer by checkley77(12844)

Question 253925: please help me:

Click here to see answer by stanbon(75887)

Question 253925: please help me:

Click here to see answer by richwmiller(17219)

Question 253925: please help me:

Click here to see answer by dabanfield(803)

Question 254405: what is fractional exop onents?
Click here to see answer by richwmiller(17219)

Question 254504: -(-3)^-3
Click here to see answer by MRperkins(300)

Question 254504: -(-3)^-3
Click here to see answer by JimboP1977(311)

Question 255582: (x+2)^(2/3)=4
Click here to see answer by palanisamy(496)

Question 255658: How to type a negative sign on the computer to be able to solve a problem?
Click here to see answer by richwmiller(17219)

Question 255986: evaluation 7x+5y when x=8 y=3
Click here to see answer by Brianna17(2)

Question 256141: Simplify:
(/)* ()/( )
Thank you
Click here to see answer by richwmiller(17219)

Question 256332: What is 6 to the negative second power over 6 to the negative third power?
Click here to see answer by edjones(8007)

Question 256863: please help me solve (-4a^-1b^2c640)/(2b^7c)
Click here to see answer by drk(1908)

Question 256864: please help me solve (-4a^-1b^2c640)/(2b^7c)
Click here to see answer by richwmiller(17219)

Question 256883: 1. (2x^2 + x - 3)/9 times (x + 1)^2/(2x^2 + 5x + 3)
2. 1/(25 - y^2) divided by (6 - 3y)/y^2 - 7y + 10)
3. abc/(a^2 - 3a - 10) divided by a^2/(a^2 - 25) times (4 - a^2/9b^2 - 4 divided by (abc + 5bc)/(3ab - 2a)
4. (n^2 + 5n + 6)/(n^2 + 7n + 12 times (n^2 + 9n + 20/(n^2 + 11n + 30)
Click here to see answer by richwmiller(17219)

Question 257300: (1/27)^2/3

16^-3/4
Click here to see answer by jim_thompson5910(35256)

Question 257568: I do not understand how to solve this problem :-12=5r+8. No matter how I try, I don't understand the concept. Can you help? muchie367@yahoo.com
Click here to see answer by rfer(16322)

Question 257521: If the perimeter of a rectangle is 22 meters, and the perimeter of a right triangle is 12 meters (the sides of the triangle are half the length of the rectangle, the width of the rectangle, and the hypotenuse is 5 meters). How do you solve for L and W, the dimensions of the rectangle.
Click here to see answer by richwmiller(17219)

Question 257871: I need to simplify this expression: -4^2x^6y / (-2xy)^4
Click here to see answer by richwmiller(17219)

Question 257950: 4(6m-7)
Click here to see answer by checkley77(12844)

Question 257948: 2x-x+4
Click here to see answer by richwmiller(17219)

Question 258031: how do you write 17,990,000 in scientific notation
Click here to see answer by drk(1908)

Question 258046: estimate 29.21+72.4

Click here to see answer by richwmiller(17219)

Question 258150: Simplify the expression m to the sixth all to the negative two thirds power. (Do not put in radical form
Click here to see answer by richwmiller(17219)

Question 258235: write 16^5/4 without exponents
Click here to see answer by richwmiller(17219)

Question 258430: simplify the product
(3 - 2√7)(3 + 2√7
Click here to see answer by drk(1908)

Question 258427: 25^-3/2
evaluate the expression
Click here to see answer by unlockmath(1688)

Question 259802: V=s2+1/2sh for h
Click here to see answer by ankor@dixie-net.com(22740)

Question 260618: write without exponents 16 5/4
Click here to see answer by Nieleya(22)

Question 260618: write without exponents 16 5/4
Click here to see answer by onlinetutor365.com(14)

Question 260899:
Click here to see answer by richwmiller(17219)

Question 260907: Simplify and write answer as positive exponents only.

Click here to see answer by checkley77(12844)

Question 260906: Simplify and write answer as positive exponents only.

Click here to see answer by drk(1908)

Question 260902: Simplify and write answer as positive exponents only.

Click here to see answer by checkley77(12844)

Question 261450: simply i higher power 29
type answer in the form a+bi
Click here to see answer by palanisamy(496)

Question 261452: answer in the form of a+bi

-4__
i
Click here to see answer by Alan3354(69443)

Question 247433: I am currently working on the question (8x)^(-1/2) = 1/4. The answer that I keep getting is that it is 4/3. This is an example of what I have been doing.
2^(3x(-1/2)) = 4^(-1)
2^(-3x/2) = 2^(-2).
-3x/2 = -4
x = 4/3
Could you please let me know where I am going wrong? The answer says that it is 2, but I'd really like to know how I'm going wrong. Thank you for your time,
Robyn
Click here to see answer by Alan3354(69443)

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