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

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

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

Click here to see answer by checkley77(12569)

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(30993)

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(30993)

Question 261737: Could you help me solve this problem?
-(3x) to the second power
Click here to see answer by Theo(3458)

Question 262392: I need help with this problem:
Write with positive exponents (3^-2 a^-2 b^5)over (c^-3 d^-4).
Thanks

Click here to see answer by drk(1908)

Question 262392: I need help with this problem:
Write with positive exponents (3^-2 a^-2 b^5)over (c^-3 d^-4).
Thanks

Click here to see answer by jim_thompson5910(28536)

Question 262392: I need help with this problem:
Write with positive exponents (3^-2 a^-2 b^5)over (c^-3 d^-4).
Thanks

Click here to see answer by richwmiller(9135)

Question 262392: I need help with this problem:
Write with positive exponents (3^-2 a^-2 b^5)over (c^-3 d^-4).
Thanks

Click here to see answer by Theo(3458)

Question 262713: Please help me solve the following problem. I'm not sure what to do with the negative sign at the beginning. Thank you.
- -2n^2*-2n^2/(-2n^-4)^2
Click here to see answer by richwmiller(9135)

Question 263051: Hi! I see a problem worked liked this:
8^2/3 = 8^1/3 * 8^1/3 = (8^1/3)^2 = 2^2 = 4
What is the reasoning behind each step?
Thanks!
Click here to see answer by richwmiller(9135)

Question 263081: Hi! I see a problem worked liked this:
8^2/3 = 8^1/3 * 8^1/3 = (8^1/3)^2 = 2^2 = 4
I don't understand how to they get from 8^2/3 to 8^1/3 * 8^1/3, from 8^1/3 * 8^1/3 to (8^1/3)^2, and from (8^1/3)^2 to 2^2. I put it this way because I don't understand how the process works of each step.
Click here to see answer by jim_thompson5910(28536)

Question 263082: Z^m/n = z^m*1/n = (z^1/n)^m = (n/square root of z)^m.
What is the reasoning behind each step? I'm really not understanding how they get from one step to the next.
Click here to see answer by jim_thompson5910(28536)

Question 263687: How do I simplify using positive exponents? 8/m^-2
Click here to see answer by richwmiller(9135)

Question 263692: How do I Simplify this problem using positive exponents?
Click here to see answer by Alan3354(30993)

Question 264079: (2x^3y^-1)^3
Click here to see answer by checkley77(12569)

Question 264165: How do u simplify 7s^0t^-5 over 2^-1m^2?
Click here to see answer by Alan3354(30993)

Question 264450: What is the equation using factoring techniques.
(x+5)^2-16=0
Click here to see answer by Alan3354(30993)

Question 264580: A square piece of cardboard is 16 inches on a side. A square piece x inches on a side is cut out from each corner. The flaps are then turned up to form an open boz. Find polynomials that represent the volume and outside surface of the box.
Click here to see answer by JBarnum(2044)

Question 265359: how do you calculate (6/5)^3
Click here to see answer by stanbon(57282)

Question 266868: F(x)=3^2-2x
Click here to see answer by stanbon(57282)

Question 211254: I am so confused by this.
Evaluate the exponential equation for three positive values of x, three negative values of x and x=0. Use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the graph, if any.
y= -3^x
I think I would start with have y=f(x)=-3^
f(0)=-3^0=1
f(1)=-3^1=-3=1/3
f(2)=-3^2=9
f(3)=-3^3=-27=1/27
Before I go any further, am I on the right track?
Click here to see answer by lovetogamble69(1)

Question 267205: (8x^3y^5/4x^2y^-3)^-1
Simplify
Click here to see answer by checkley77(12569)

Question 267650: 2/9(x-6/7)=1/63x + 40/63
Click here to see answer by roseo(33)

Question 267888: what is x to the negative 4th power divided by x to the negative 6th?
Click here to see answer by palanisamy(496)

Question 270381: how do you work out 6 1/4 - 2 1/2
Click here to see answer by Alan3354(30993)

Question 270381: how do you work out 6 1/4 - 2 1/2
Click here to see answer by JBarnum(2044)

Question 270585: 23-2[4+3(x-1)]+5[x-2(x+3)]=7 {x-2[5-(2x+3)] }
this all looks like jumble to me, my I please get this problem broken down step by step; PLEASE
Click here to see answer by stanbon(57282)

Question 270780: how do i do this: x/3-2x/5+3x/6=10 (fraction busters)
Click here to see answer by stanbon(57282)

Question 270846: Use exponents to write an expression for one billion?
Click here to see answer by solver91311(16872)

Question 270846: Use exponents to write an expression for one billion?
Click here to see answer by josmiceli(9664)

Question 270846: Use exponents to write an expression for one billion?
Click here to see answer by JBarnum(2044)

Question 270941: Would you please help me find what one-third to the power of negative one is?
Click here to see answer by Zyzden(7)

Question 270941: Would you please help me find what one-third to the power of negative one is?
Click here to see answer by papugai(18)

Question 270937: 6x^7y^5/3x^-1
Click here to see answer by JenniferTutors(83)

Question 271383: x to the 13 power y to the 2 power
____________________________________
x to the 13 power y
Click here to see answer by checkley77(12569)

Question 271815: 3x^-9/6x^-11
Click here to see answer by dabanfield(803)

Question 271880: Write an equivalent expression without using the grouping symbols: -(3x + 5)
Click here to see answer by LarissaRichardson(34)

Question 272546: -(-9+8y)
Find an equivalent expression without parentheses.
Click here to see answer by rfer(12654)

Question 272769: Solve and check the given equations with rational exponents. x 3/2 = 125
Click here to see answer by jim_thompson5910(28536)

Question 273434: I saw a problem, 8^-5/3, worked like this:
(1/8)^-5/3 = (cube root of (1/8))^5 = (1/2)^5 = 1/32
I see 8^-5/3 going to (1/8)^-5/3. Why is 1/8 raised to a power? I don't understand why it's not 1/8^5/3.
Click here to see answer by ankor@dixie-net.com(15645)

Question 274008: (3a)exponent of 3 times (2a) with an exponent of2
Click here to see answer by edjones(7569)

Question 274153: if i have a fraction with a negative numerator and a negative denominator, is that fraction a negative number or a positive? I am asking because i worked a problem for practice and that is how the fraction in the eqaution worked out.
Click here to see answer by josmiceli(9664)

Question 274210: "If you have 5 squared with a negative exponent, how do you write it or simplify it so that you can write it without a negative exponent
Click here to see answer by ankor@dixie-net.com(15645)

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