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

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

Question 801547: a^-2b^2=
Click here to see answer by tommyt3rd(5050)

Question 781114: How do you simplify x-4+1-x?
Click here to see answer by tommyt3rd(5050)

Question 827331: (-5/x)^2
I tried to solve the problem and I got 25/x^2
The answer key I have says the correct answer is x^2/25
I would like to know if my answer is wrong and how to do it or is the answer key wrong and I'm right.
Click here to see answer by MathLover1(20850)

Question 829496: Simplify
(4^16)^1/2. I need to show the steps.

Click here to see answer by josgarithmetic(39623)

Question 829496: Simplify
(4^16)^1/2. I need to show the steps.

Click here to see answer by MathTherapy(10555)

Question 829505: Can you give me very specific step by step directions.
(3/4-2/3) + (1/2 + 1/3)
Click here to see answer by Edwin McCravy(20060)

Question 829505: Can you give me very specific step by step directions.
(3/4-2/3) + (1/2 + 1/3)
Click here to see answer by oscargut(2103)

Question 830033: What is the answer to (xy^2)^2
Click here to see answer by LinnW(1048)

Question 831492: -2^2-3^2
Click here to see answer by JulietG(1812)

Question 831947: 216 to the power of 3x + 1 = 6. I am in 8th grade and taking algebra 1 a year early. I am very confused and I need help. basically 3x + 1 is the exponent of 216
216^3x + 1 = 6
Click here to see answer by Alan3354(69443)

Question 833675: -x-(13+4x)=-3(5-9x)+2
Click here to see answer by unlockmath(1688)

Question 834122: Please help me with these two problems:
(9^-3)/(3^-8)
and
one divided by the cubed root of x to the fourth power?
Click here to see answer by littlewiseowl_1997(2)

Question 834769: Subtract 4 from z. Multiply this difference by 5. Now square this product. Find the value of this expression when z = 6

Click here to see answer by Edwin McCravy(20060)

Question 835135: I need to simplify (3^3+square root 5)/(3^1+square root 5)
Click here to see answer by Fombitz(32388)

Question 835507: what is the square root of 64 in fraction form?
Click here to see answer by richard1234(7193)

Question 836192: -78 to the power of 3/4
I tried 78 to the 3rd power and then taking the 4th root of it but can't seem to get anything but an error on my TI calculator.
Thanks!
Click here to see answer by erica65404(394)

Question 837253: (7ab^-4)^-1(-7a) simplify write without negative or zero exponents
Click here to see answer by LinnW(1048)

Question 828873: (3a^-1)^2/(6ab^-3/2)^2

Click here to see answer by LinnW(1048)

Question 838297: How do you solve (4w over 3x) to the -3 power?
Click here to see answer by Fombitz(32388)

Question 838295: How do you solve 6a to the 3 power b to the -2 power?
Click here to see answer by Alan3354(69443)

Question 838296: How do you solve (-3ab to the 2 power) (-4a to the -2 power b) to the 2 power?
Click here to see answer by Alan3354(69443)

Question 838408: 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)
please help me

Click here to see answer by Alan3354(69443)

Question 838407: 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 Alan3354(69443)

Question 838852: Y-4/5=6 3/4

Click here to see answer by Fombitz(32388)

Question 839975: 1055=k/2+304
Click here to see answer by rfer(16322)

Question 840629: How do you rewrite 5 to the power of negative 3 over 4 to the power of 7?
Click here to see answer by Fombitz(32388)

Question 840822: -10(-10x-1)
Click here to see answer by Fombitz(32388)

Question 841093: 4/15 + 3/5
Click here to see answer by ewatrrr(24785)

Question 841088: 6X-52=4X+40. X=?
Click here to see answer by Fombitz(32388)

Question 842624: I'm having difficulty solving this question:
Solve for x: 2x^(-2/3) - 5x^(-1/3) - 3 = 0
Here is where I'm stuck: 2/x^(2/3) - 5/(x^(1/3) = 3
What do I do from here?
Click here to see answer by ewatrrr(24785)

Question 842630: Solve for x: 2x^(-2/3)- 5x^(-1/3) - 3 = 0
Any help is greatly appreciated!
Click here to see answer by ewatrrr(24785)

Question 843014: In each part,compare the natural domains of f and g.
(a) f(x)=(x^2+x)/(x+1); g(x)=x
Click here to see answer by aulii(13)

Question 843642: (a^1/2b)^1\2(ab^1/2)
This is what I came up with next then I'm stuck
a^2/4b^1/2(ab^1/2)
Click here to see answer by Fombitz(32388)

Question 843676: Multiply and simplify completely, including the elimination of all negative exponents:
(2x^10/3y^9)^4 times (3^2y^8/2^3x^-3)

Click here to see answer by Fombitz(32388)

Question 844641: Rewrite without fractional exponents. Assume that all even roots are positive quantities.
(9x^8)^3/2
Click here to see answer by Fombitz(32388)

Question 845045: (-4x)to the 4th power, times, (-4) to the negative 6th power.... Simplified
Click here to see answer by Fombitz(32388)

Question 845263: Solve the equation:
(2m+4)^(1/7)-(m-3)^(1/7)=0
The Solution set is______.

Click here to see answer by pmesler(52)

Question 845507: How do I solve problems that have a fraction has the base and a fraction as the exponent? example: (1/32)^(1/5)
OR
(1/16)^(1/4)
Click here to see answer by richwmiller(17219)

Question 847143: How do I evaluate 625^(-2/4)? We have just started to learn this and I cannot figure this out for the life of me.
Click here to see answer by Alan3354(69443)

Question 847435: (x^-3n)^2(-x^-3n^-6)^2 convert negative exponet simplify the expression
Click here to see answer by Alan3354(69443)

Question 847629: Please help me solve this equation. A step-by-step analysis would be extremely helpful as I am just learning the rules. I am particularly stumped by how to add or subtract same base exponents.

The answer is zero, but what was the process to get that? I added the exponents that had the same base and got 5^4/3 (as a fractional exponent, or cuberoot 5^4), but what do I do about adding/subtracting same base exponents, i.e., +5^-5/3 -5^1/2 -5^3/2? Any help would be greatly appreciated. Thank you.
P.S. Sorry about the questionable format, but I don't know how to type in the fractional exponents. I hope the problem makes sense. It's all the same 5 base but with fractional exponents.
Click here to see answer by Alan3354(69443)

Question 847662:

What is 495 times 10 to the negative eleventh?
Click here to see answer by checkley79(3341)

Question 848174: how to divide equations
Click here to see answer by richwmiller(17219)

Question 849125:
Click here to see answer by Alan3354(69443)

Question 849257: -2x+8=-2
Click here to see answer by swincher4391(1107)

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