# 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 231515: I tried to use the calculator, but still can't come up with an answer. It is a multiple choice. Q: In(1/3.14159) A).4971 B)1.147 C)-1.1447 D)-0.4971 I am lost..I have other problems to do, please show me how you do this so I can do the rest of my work..Thank you Click here to see answer by Alan3354(30993)

 Question 231101: Trying to solve this equation for x: 9x^(2/3)-4x^(-4/3)=0 Step by step instructions would be great as I don't understand how to get rid of the powers - I know the answer is +/- 2/3 Thank you Click here to see answer by ankor@dixie-net.com(15645)

 Question 231656: simplify (256) 3/4 but the 3/4 is an exponet Click here to see answer by rfer(12654)

 Question 231719: how can we simplify this: 2L*C/(c^2 - v^2) = ? Click here to see answer by solver91311(16872)

 Question 232148: What is negative 2 to the negative fourth power? Is there a difference if the negative 2 has parenthesis around it or not? Thanks! Click here to see answer by rfer(12654)

 Question 232498: rewrite the following with out an exponent (2/7)-2 Click here to see answer by rapaljer(4667)
 Question 232498: rewrite the following with out an exponent (2/7)-2 Click here to see answer by jsmallt9(3296)

 Question 232755: how do you solve for x in this problem: .30 = 7-50+45(1+x)^-.25 Click here to see answer by jsmallt9(3296)
 Question 232755: how do you solve for x in this problem: .30 = 7-50+45(1+x)^-.25 Click here to see answer by Alan3354(30993)

 Question 232918: Okay im not sure which category i would be choosing for this but its negitive numumbers as well as fractions , ill explain. in this set of chips, each plain chip has a value of -1, and each striped chip has a value of 1. theres 4 plain chips and 2 striped. how do i solve this? Click here to see answer by edjones(7569)

 Question 233405: Regarding negative exponents. Please explain why 2^-2 evaluates to 1/2^2 =1/4, but (-2^3)^2 evaluates to 2^6=64. I do not understand why the second expression results in a whole number. bljones1944@charter.net Click here to see answer by jsmallt9(3296)

 Question 233493: 3^1/6 * 3^2/3 / 3^1/2 I wanted to show my attempt, but unable to type out my steps. Thanks, Nick Click here to see answer by rfer(12654)

 Question 233904: i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8 Click here to see answer by Alan3354(30993)
 Question 233904: i don not understand this could you help me? my paper says simplify the expression. write your answer using exponents. 5^4 x 5^8 Click here to see answer by stanbon(57282)

 Question 234136: Fraction: 2/-2^-3 is supposed to be equal to 16. But I don't get it. Can someone explain the process for my understanding? I don't know how to deal with negative exponents especially when it's in a fraction. Click here to see answer by nyc_function(2733)

 Question 234664: I really need help with this equation. (4.5)(x/20)=14 Click here to see answer by rfer(12654)

 Question 235495: Use the sum of two cubes or the difference of two cubes pattern to factor the following. I am totally lost and can not even start this problem 49) 27x³+64y³ Click here to see answer by solver91311(16872)

 Question 235853: What is 7 to the negative fourth power Click here to see answer by Theo(3458)

 Question 237010: use exponents to write an expression fro one billion (1,000,000,000) Click here to see answer by thrasherlax74(11)

 Question 237527: Hi,my name is kuupeahi taliloa and I really need help on my math homework...can you help me?please..What is 8 to the 2nd power times -1? Click here to see answer by College Student(505)

 Question 237854: How to expand five to the negative second power Click here to see answer by rfer(12654)

 Question 237889: What Is The Multiplicative Inverse Of Negative 7 Click here to see answer by stanbon(57282)

 Question 238135: Hi can someone help me with these problems,and show the work so I can try and figure how to do next problems. Thanks 1. Write an equivalent expression without using the grouping symbols: -(3x + 5) 2. Clear fractions or decimals, solve, and check: 1/2+4m=3m-5/2 3. Combine like terms, and write in descending order: 3/4 x^3+4x^2-x^3+7 Click here to see answer by solver91311(16872)

 Question 238759: Please help (I hope this is the right section :-| The question reads: Place >,<,= between each of the following pairs to make true sentences. a) 4/5 and 120/150 b) -6/5 BS -7/6 C) -4/20 AND 4/-20 a and c are equal (I beleive!!) But I have no idea what BS means. Thanks for your help! Click here to see answer by unlockmath(1599)
 Question 238759: Please help (I hope this is the right section :-| The question reads: Place >,<,= between each of the following pairs to make true sentences. a) 4/5 and 120/150 b) -6/5 BS -7/6 C) -4/20 AND 4/-20 a and c are equal (I beleive!!) But I have no idea what BS means. Thanks for your help! Click here to see answer by JimboP1977(308)

 Question 239663: Equivalent expression without using the grouping symbols: -(3x +5) Click here to see answer by stanbon(57282)

 Question 239664: What is 2X10 to the negative 7th power? Click here to see answer by stanbon(57282)

 Question 239956: I need to use the variables a= -1 b= -2, c= -3, d= -4 and the answer needs to equal 27. Can you help me come up with solutions for this problem? Click here to see answer by solver91311(16872)

 Question 240353: I need help figuring out how to do this: -2/7x = 1/5 I am using "/" as the fraction bar Click here to see answer by vleith(2825)