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

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

Question 205590: The question is: Classify the following polynomial by its degree and terms. x^2-5x+2. This is a multiple choice question. The choices are: quadratic binomial, cubic trinomial, quadratic trinomial, and linear binomial. So far what I have done is cancel out quadratic binomial and linear binomial because the equation has 3 terms(trinomial) and binomial stands for 2 terms. I don't know which one it is now , quadratic trinomial or cubic trinomial.
Click here to see answer by Alan3354(69443)

Question 205591: The question is: What is the slope of the line x=2? This is a multiple choice question and the choices are: -2, 2, 0, and undefined. What i have done so far is cancel out undefined. I tried doing rise over run( 2/1) but i don't think it is right.
Click here to see answer by Alan3354(69443)

Question 206174: can you help me simplify this problem

Click here to see answer by HyperBrain(694)

Question 206019: x^2 - 3x^1/2 - 10 = 0
Click here to see answer by mickclns(59)

Question 206658: I have tried to figure this out for 2 days. I would really appreciate any help!!
Calculate the value of the fraction below and leave your answer in scientific notation.
(9.2x10^45)((?)x10^15)/1.2x10^-3
I think that it is the (?) that is giving me the problem.
Click here to see answer by stanbon(75887)

Question 206758: okay, i don't think this is in the right spot but its the closest thing to my problem.
Directions: Write the fraction in simplest form. (read it down, cuz its on a slant)
1. 35k to the 2nd | 2. 64a to the 5th | 3. 51xy to the 3rd | 4. 24mp
-------------- | ---------------- | ------------- | --------
28k | 8a to the 3rd | 34x to the 4th |40m to the 2nd
p to the 3rd
I don't know where to start... or what to do, really. You don't have to help me with all of those, I just gave them all to give you an idea of what I was doing.
Thanks for your help,
Mo
Click here to see answer by jim_thompson5910(35256)

Question 206949: I've tried the problems like these a million times and always come out with a really off answer.
(-2x) + (-x)
some of the problems are more complex:
(-4) + 2x + 2x
Click here to see answer by stanbon(75887)

Question 207295: x^-4/ x^-6
Click here to see answer by vleith(2983)

Question 207526: Simplify
3(n + 1)! / 5n!
Click here to see answer by HyperBrain(694)

Question 207533: Solve for x where x is a real number
27^2x = 9^x-3
Click here to see answer by stanbon(75887)

Question 207785: 1/x+1/a=1/b then x=
Click here to see answer by jim_thompson5910(35256)

Question 208335: Hello,
Is 0.5 cubed (or, to the power of 3) equal to 0.125? As in 0.5 x 0.5 x 0.5 = 0.125? If not, what is the correct answer, and how would I figure out similar problems on a regular calculator or another method?
Thank you!
Click here to see answer by scott8148(6628)

Question 208395: in () 3x squared and outside the () an exponent of -2
Click here to see answer by jsmallt9(3758)

Question 208386: 4q to the 5/2 power
Click here to see answer by rfer(16322)

Question 208439: 20-4 over 5x is greater then or equal to 16?
greater then=> (if i have it wrong, its less then)
Click here to see answer by Theo(13342)

Question 208438: x^2-x-6 over x^2-4
Click here to see answer by Alan3354(69443)

Question 208706: Please, help me with this, step by step:
Wrtite in simplest form without negative or zero exponents.
(3x^-2y)^-1 over (2xy^-2)^0
Click here to see answer by Edwin McCravy(20060)

Question 208710: Please, help me with this, step by step:
Wrtite in simplest form without negative or zero exponents.
p^-1q^-2 over p^-3
Click here to see answer by ankor@dixie-net.com(22740)

Question 208707: Please, help me with this, step by step:
Wrtite in simplest form without negative or zero exponents.
(2x^-1)^-2 over 2(y^-1)^-2
Click here to see answer by ankor@dixie-net.com(22740)

Question 208840: What would (3x^(2/5))*(2x^(1/2)) be?
I understand how to multiply fractional exponents when the bases are the same, but I do not know how to do so when the bases are different.
Click here to see answer by Alan3354(69443)

Question 209010: please help me simplify these expressions leaving
the final answer with only positive exponents:
1.
2.

I'll wait for your reply sir/madam. It will be a great help for my homework. Thank you.
Click here to see answer by stanbon(75887)

Question 209063: I need help simplifying this problem:
{ √2x+3) - x+1/(√2x+3) } / 2x+3
I started out like this:
A = 2x+3
B = x+1

{ √A) - [B/√A)] } / A
I'm not sure what to do from here, i'm just supposed to simplify it
Click here to see answer by stanbon(75887)

Question 209194: I need to use the number 7 four times as exponents to equal 1, then 2, then 3...all the way up to 100. How do I figure out the equations?
For example: 77/77 = 1
7/7 + 7/7 = 2 and so on...
Click here to see answer by rapaljer(4671)

Question 209330: what is 10 to the power of negative 11?
Click here to see answer by Alan3354(69443)

Question 209417: Im in algebra II but we are going over algebra 1 a bit before we start. Im stuck on a couple problems. She gives us the answers but i want to know how to get there. here it is:
7/4 square route 49
the answer says it = square route 7
Ive tried multiplying by the entire denominator (with switching the sign), and ive tried multiplying by square route 49 also..
please help
Click here to see answer by Alan3354(69443)

Question 209838: I need to simplify this expression: 9x^4y^2/3x^2y^5 using positive exponents and I have tried everything and still can't get an answer that makes sense. What is the technique to answer the question?
Click here to see answer by tutor_paul(519)

Question 209920: simplify
5(3)X 5(-3)
exponents are in parenthesis
Click here to see answer by nyc_function(2741)

Question 209919: 3a(-2)b(-4)
write without negative exponents. The numbers in parenthesis are the negative exponents.
Click here to see answer by nyc_function(2741)

Question 210294: What does putting a negative sign in front of the equation do?

Click here to see answer by stanbon(75887)

Question 210771: What is the answer for 1/7 = 14 - X
Click here to see answer by checkley77(12844)

Question 210778: Please solve the problem -2 = y/5 + 3
Click here to see answer by tutor_paul(519)

Question 210769: (-125/64)^-2/3
Click here to see answer by Alan3354(69443)

Question 210965: Could someone tell me if these are right Thank you
Rewrite the following using only positive exponents.
3^-1 +1/3^1 = 1/3
(2.5)^-2 = 2^-2/5^-2 = 1/2 ^2 over 1/5^-2 = 1/2^2 . 5^2/1 = 5^2/2^ = 25/4
8 /8^-2 = 8^1/8^-2 = 8^1 + 8^3 = 512

Click here to see answer by Earlsdon(6294)

Question 210966: Help I don't get this at all
Rewrite the following using only positive exponents
a^3b^-2/a^-4
(5x^2)^-1
5(x^2)^-1
b^0a^-2c^3
Click here to see answer by Earlsdon(6294)

Question 210969: Write the value of ? 1=(b^2c^4)?
Solve algebraically, using the five step method. Show all work
The area of a rectangle is 525cm^2. Find the dimensions of a rectangle if the ratio of the length to the width is 7:3.
Solve algebraically, using the five step method. Show all work
The width of a pool is 3/4 of its length. It takes 126 feet of fence to edge the pool. What are the dimensions of the pool?
Any help is greatly appreciated
Click here to see answer by edjones(8007)

Question 211086: If anyonw could help I would appreciate it.
Rewrite the following using only positive exponents
(2/5)^-2
and
5(x^2)^-1
Click here to see answer by nerdybill(7384)

Question 211085: Please help. with these two problems Thanks. I am confused
Solve (find the value for the given variable) Show all work and check answers.
a+1/6 = 2/a
5/3x+1 = 3/3x-1
Click here to see answer by ankor@dixie-net.com(22740)

Question 211128: How does one factor a polynomial where only two of items have negative exponents?
3x^-2 -7x^-1 -6 = 0
1/3x^2 - 1/7x - 6 = 0
Foil would give (1/3x - 3) (x + 2) - but how to get that - 1/7x in the middle (I can get - 7/3x)?
Click here to see answer by algebrapro18(249)

Question 211197: how do you find the square root of negative 5
Click here to see answer by Alan3354(69443)

Question 211209: if p/q= {(2/3)to the power 3 + (3/2) to the power -3 },
what is the value of (p/q) to the power -10?
Click here to see answer by Alan3354(69443)

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 jim_thompson5910(35256)

Question 211278: what is 4 to the negative 4th power
Click here to see answer by Alan3354(69443)

Question 211456: (-32) raised to the exponent 10 squared
Click here to see answer by Theo(13342)

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