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

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

Question 179694: I'm working on quadratic equations Equations and inequalities of one variable, in higher degree polynomial equations. Equation (5y-4)^-1/4 - 5(5y-4)^-4/3 =0. I understand that I must factor out (5y-4)^-4/3. I understand "factor out" as meaning to remove this from the equation. However, this results in (5y-4)^-4/3 ((5y-4)-4)=0, which I do not understand. Can someone explain what took place.
Click here to see answer by stanbon(75887)

Question 179750: Please help me reduce the rational expression to lowest terms.
4 -x^2 over x^2 - 7x + 10
Click here to see answer by Mathtut(3670)

Question 179755: Please help me multiply these two fractions together.
y^2 -6y + 9 over 8 multiplied by 4y + 12 over y^2 -9.
Click here to see answer by solver91311(24713)

Question 179755: Please help me multiply these two fractions together.
y^2 -6y + 9 over 8 multiplied by 4y + 12 over y^2 -9.
Click here to see answer by stanbon(75887)

Question 179751: Please help me multiply these two fractions together.
x^2 + 6x +5 over x multiplied by x^4 over 3x +3
Click here to see answer by solver91311(24713)

Question 180019: hi i need help with negative exponents. what is 7 to the -2nd power? Thanks
Click here to see answer by nerdybill(7384)

Question 180023: hello i need help with negative exponents. what is 3 to the -4th power divided by 3 to the -3rd power? i don't understand P.S. it is on page 652
Click here to see answer by Mathtut(3670)

Question 180021: hey there. i need help with negative exponents. what is 2 to the -4th power multiplied by 2 to the -3rd power? Thanks
Click here to see answer by ankor@dixie-net.com(22740)

Question 180021: hey there. i need help with negative exponents. what is 2 to the -4th power multiplied by 2 to the -3rd power? Thanks
Click here to see answer by Mathtut(3670)

Question 180036: How do I solve this problem:
(5/6)^-2
Click here to see answer by Mathtut(3670)

Question 180017: i really need help with negative exponents. what is 6 to the -2nd power? thanks
Click here to see answer by HyperBrain(694)

Question 180230: (y^4)^-2(2x^4y^-2)^3 divided by (4x^-7y^-2)^2
Click here to see answer by eperette(173)

Question 180455: (2x^2)^-2
Click here to see answer by Mathtut(3670)

Question 180893: Please help me solve this algebraic equation!
7ab^-4
Click here to see answer by jim_thompson5910(35256)

Question 181200: True or False:
3.36x10^-3 = 0.00336
Explain your answer
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Question 181390:
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Question 181385: can you please help me on my algebra homework im stuck on 2 problems # 10 is 1/(2x)-3 (thats negative 3) and # 17 8(1/4)-1 (thats negative 1) if you can help me please and thank you
Click here to see answer by Alan3354(69443)

Question 181572: explain how you can find the number of three colored cubes needed for an n x n x n cube
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Question 181693: If there is a 0 as the exponent then what would the base be? like as in 2^0
Click here to see answer by Alan3354(69443)

Question 181710: Please help solve this problem:
(a^-3/3b)^4=
I got this far
(1/a^3*3b)^4
Thank You
Click here to see answer by Mathtut(3670)

Question 182288: I don't know where to start. I don't know whether to combine the m's or multiply the whole numbers times the m's. help me
Click here to see answer by Mathtut(3670)

Question 182291: Dear MATHTUT, I apologize for not sending you the problem. Here it is.
2(-m^-1)^4 over 9(m^-3)^2
Click here to see answer by Mathtut(3670)

Question 182588: unsure how to do the steps

Click here to see answer by Alan3354(69443)

Question 182617: y/4=5/6y+2 How do I do this step by step. I know the answer is y = - 24/7
any help would greatly apperciated.

Click here to see answer by solver91311(24713)

Question 177339: how do you solve (5b4n)/(2a6)2
Click here to see answer by Alan3354(69443)

Question 182852: hi
im having some problems with dividing algebraic fraction's here's one iv'e tried: 9bc/2a divided by 6b/4a=
i got the answer 36abc/12ab = 3c
im not sure if im doing them right?
Click here to see answer by nerdybill(7384)

Question 182851: hi
im having some problems with dividing algebraic fraction's here's one iv'e tried: 9bc/2a divided by 6b/4a=
i got the answer 36abc/12ab = 3c
im not sure if im doing them right?
Click here to see answer by nerdybill(7384)

Question 183062: (-1) (x) (-x�) (x) (-x�)
Click here to see answer by Alan3354(69443)

Question 183116: Exponents
Simplify the expression if possible. Write your answer as a power
(x to the 5th power)6th power
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Question 183223: Exponents:
Simplify the expression if possible. Write your answer as a power.
(-2x)4th power

Click here to see answer by jim_thompson5910(35256)

Question 183225: Simplify the expression if possible. Write your answer as a power.
3x to the 2nd power times (4x to the 3rd power)2nd power
Click here to see answer by stanbon(75887)

Question 183251: Simplify. Then evaluate the expression when a= 1 and b= 2
(a^2b^2)^3
Click here to see answer by rapaljer(4671)

Question 183254: Rewrite the expression with positive exponents.
x^-4y^3
1/2x^-2y^-3

Click here to see answer by stanbon(75887)

Question 183317: Simplify the expression. The simplified expression should have no negative exponents.
(4x^2y/3xy^2)

Click here to see answer by user_dude2008(1862)

Question 183386: Classify the model as exponential growth or exponential decay.

y= 11(4.25)^x
Click here to see answer by stanbon(75887)

Question 183838: Ok! So, in the past few days, my algebra teacher left on family matters for a few days... Before she left, she gave our class a paper that she didn't exactly have time to sit down and explain how to do. The sub we had wasn't exactly great at this stuff either, so if you could explain what I'm supposed to do in these problems, that would be excellent!
(-2x^4y^2 * x^3y^-2)^4
-----------------------
xy^4
Click here to see answer by stanbon(75887)

Question 184220: why can't you leave a negative number in the denominator? I know you mult. the top and bottom by -1 to keep the neg. out, I just need to know why is that the rule. trying to explain to a student/
Click here to see answer by vleith(2983)

Question 184392: Simplify the following:
-9^-1/2
Click here to see answer by checkley77(12844)

Question 184481: What is 9 to the negative fourth power

Click here to see answer by stanbon(75887)

Question 184872: I can only use positive exponents.
I was wondering if you could help me?
My problem is (2t) Negitive 6
Click here to see answer by stanbon(75887)

Question 185414: 2x x-1
- - -
3 3
Click here to see answer by checkley77(12844)

Question 185608: (a^8)^2/(a^9)^8
Click here to see answer by checkley77(12844)

Question 185607: (x^4)^3/x^21
Click here to see answer by checkley77(12844)

Question 185606: (x^5y^6)^-3
Click here to see answer by checkley77(12844)

Question 185860: I don't understand this math and the book doesn't give a good explanation of how to solve the problem.
1/6t = 18

x+8/4= 6
Click here to see answer by checkley77(12844)

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