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

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 Algebra: Negative and Fractional exponents Solvers Lessons Answers archive Quiz In Depth

 Question 61095: which one of these numbers are prime and how do i show my work? 12,31,99,1 i think 1 is prime because you only have 0,1 Click here to see answer by venugopalramana(3286)
 Question 61095: which one of these numbers are prime and how do i show my work? 12,31,99,1 i think 1 is prime because you only have 0,1 Click here to see answer by praseenakos(2)

 Question 62645: help would be appreciated solve -5 - 3^2 - 3(x - 2) = 3[(x - 2)3-4] Click here to see answer by stanbon(57323)
 Question 62645: help would be appreciated solve -5 - 3^2 - 3(x - 2) = 3[(x - 2)3-4] Click here to see answer by checkley71(8403)

 Question 62643: Help would be appreciated Simplify -4^2 + (-2)^4 - 3^3 - absolute vale of -4 - 4 Click here to see answer by stanbon(57323)

 Question 62640: I would apprecaite some help with the following : Simplify 3(m^-3)^-2 nm^3n^-1 / mm^2m^0m^-7(m^3)^3 Click here to see answer by funmath(2925)

 Question 62638: I need help please!! Solve by adding like terms : -3xy + 8xy^-1x^0 / y^-2 - 3x^2x^-1x / (x^-1)^-1 Thank u! Click here to see answer by funmath(2925)

 Question 62687: -3a^b * 14a^3b^2 ----- -------- 35a^5 -9b^4 I think I simplify first then multiply but I'm not sure. I am not sure what I should do first. Click here to see answer by checkley71(8403)

 Question 62683: I hope this is in the right section. 13. divide x^3+2x^2+x+12/x+3 I got as far as the first part. x^2 which gives us x^3 +3x^2. Do I add the 2x^2 to the 3x^2, giving me 5x^2 . If I am correct I didn't know what to do next with the x. Click here to see answer by ankor@dixie-net.com(15649)

 Question 62690: 24. Divide 2x-6 divide 5x-15 ---- ----- 21 12 I think I factor. I did 2(x-3) divide 5(x-3) ------ ----- 21 12 Now what do I do? Click here to see answer by ankor@dixie-net.com(15649)

 Question 62693: Add. Express your answer in simplest form. x-13 + 3x-3 ---- ----- x^2-x-12 x^2-x-12 the denominator is the same, so I'm sure this is simple and I am making harder than it is. Click here to see answer by stanbon(57323)
 Question 62693: Add. Express your answer in simplest form. x-13 + 3x-3 ---- ----- x^2-x-12 x^2-x-12 the denominator is the same, so I'm sure this is simple and I am making harder than it is. Click here to see answer by Cintchr(481)

 Question 63033: helP! :) Evaluate : a^2 - ya - y(a-y) if y = -3 nad a = 1/3 Click here to see answer by stanbon(57323)

 Question 63030: to divide monomials and simplify expressions with negative exponents (9ab^-2)^-2/(8a^-2b)^-2*(3a^-2b)^3/(2a^2b^-2)^3 Click here to see answer by Cintchr(481)

 Question 63870: The problem I am trying to solve is -n + 0.4n + 1.8 = -4.2. I think that I need to add the 2 n's together, but I am not sure how, since one is negative, and there is no value is it 0? So would it just be .4n? or -.4n? Then I think I need to add -1.8 to each side, which would then be .4n = -6.0 and the answer would be -15. Am I on the right track? Click here to see answer by stanbon(57323)

 Question 64365: simplify 3ac/x^2 + 2 / z^2 DIVIDED BY 1 - 4/ x^2z^2 Click here to see answer by ankor@dixie-net.com(15649)

 Question 65127: 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 303795(595)

 Question 65142: this is all in paraenthesis. on top : 4x squared y to the third m to the fifth on bottom : 3x to the fifth m to the first Click here to see answer by stanbon(57323)

 Question 64687: please help to simplify : x^3 - 5x^2 - 24x / x^2 - 9 * x^2 + 3x - 18 / x^3 - 11x^2 + 24x thank you Click here to see answer by checkley71(8403)