# Questions on Algebra: Exponents and operations on exponents answered by real tutors!

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 Algebra: Exponents and operations on exponents Solvers Lessons Answers archive Quiz In Depth

 Question 464940: The problem is to be written in scientifice notation 2x10(negative 3 power) over (divided by) 5x10 (16th power) I came up with 0.4x10 (-19th power) Click here to see answer by rfer(12727)

 Question 466107: Please help me with this problem, thanks(: Simplify: _15_+_30√14_ 5√2 or in other words: 15 plus 30 Onto NOT Over the SQUARE ROOT of 14 OVER 5 onto the SQUARE ROOT of 2 Click here to see answer by Alan3354(31510)

 Question 466204: If A = {a, b, c, d} and B = {1, 2, 3, 4}, how many different one-to-one correspondences can be made? 4 I answered four but I don't know if my above answer is correct? Click here to see answer by stanbon(57956)

 Question 466193: The point (6, 8) lies on the line 8x + 11y = 136. Determine if this point is a solution of the system 8x + 11y = 136 0x – y = -8 Click here to see answer by robertb(4012)

 Question 465771: I'm studying, "Zero and Negative Integral Exponents". I have a couple of excericses to do with these insructions: Simplify and write each expression with postive exponents. y^c-d (if: c < d < 0) -> I kinda understand the range but I don't know how to use it in the exponent, do I evaluate the numbers and then substitute? Click here to see answer by richard1234(5390)

 Question 466421: Rewrite this expression with positive exponents and simplify. [(x^2y^-2)^-1]^-1 Thanks! Click here to see answer by solver91311(17075)

 Question 466450: I am drawing a blank on simplifying a simple problem: 16 with exponent of 1/2. It is a homework problem. Click here to see answer by ccs2011(207)

 Question 466488: Factor is the instruction. Can you factor this though? v^4+7v^2-30 Click here to see answer by unlockmath(1614)

 Question 466486: Factor. check by multiplying. (I get lost w/gcf and lcd....always on the wrong track!) 5x^7y^5+30x^5y^4+35xy Click here to see answer by mananth(12270)

 Question 466627: Hello! I have a hard time with fractions. Here is my problem, and I wish to know if I worked it out correctly. (3/4x + 1/2)^2 = (3/4x + 1/2) (3/4x + 1/2) = 3/4x * 3/4x = 9/16x^2 --> 3/4x * 1/2 (((2/4 * 3/4x)) = 6/16x = 1/2 * 1/2 = 1/4 = 9/16x^2 + 6/16x + 6/16x + 1/4 = 9/16x^2 + 12/16x + 1/4 I want to know if I worked this problem out correctly. Click here to see answer by rfer(12727)
 Question 466627: Hello! I have a hard time with fractions. Here is my problem, and I wish to know if I worked it out correctly. (3/4x + 1/2)^2 = (3/4x + 1/2) (3/4x + 1/2) = 3/4x * 3/4x = 9/16x^2 --> 3/4x * 1/2 (((2/4 * 3/4x)) = 6/16x = 1/2 * 1/2 = 1/4 = 9/16x^2 + 6/16x + 6/16x + 1/4 = 9/16x^2 + 12/16x + 1/4 I want to know if I worked this problem out correctly. Click here to see answer by Alan3354(31510)

 Question 466787: 4a^-5b^5 -------- 12a^3b^-5 all to the 0 power.. would this just be 1? I know it would simplify to 3b^10 but i dont know what to do with the 0 power ----- a^8 Click here to see answer by ccs2011(207)
 Question 466787: 4a^-5b^5 -------- 12a^3b^-5 all to the 0 power.. would this just be 1? I know it would simplify to 3b^10 but i dont know what to do with the 0 power ----- a^8 Click here to see answer by Alan3354(31510)
 Question 466787: 4a^-5b^5 -------- 12a^3b^-5 all to the 0 power.. would this just be 1? I know it would simplify to 3b^10 but i dont know what to do with the 0 power ----- a^8 Click here to see answer by Theo(3504)

 Question 466785: 3x^4 ------ y all of this is in parentheses to the -3 power. Click here to see answer by Theo(3504)

 Question 467055: p^0x^2y(x^3y^1-3x) thank you for helping me solve this equation. Click here to see answer by Big Poop(157)

 Question 467367: Simplify the following expression, and rewrite it in an equivalent form with positive exponents. (-x^-3)^-5 Click here to see answer by jim_thompson5910(28704)

 Question 469106: If a = 2^3 ⋅ 3^7 ⋅ 5^3 ⋅11^4 and b = 2^2 ⋅ 3^5 ⋅ 7^2 ⋅11⋅13, find the following. (Leave your answer written with exponents). a. GCD (a, b) b. LCM (a, b) Click here to see answer by Tatiana_Stebko(1326)

 Question 469341: How do I use the laws of exponents to simplify? 7.4^7/4 _______ 7.4^2/3 Click here to see answer by stanbon(57956)

 Question 470010: Hello, I am a little confused on how to solve this algebraic equation. I see someone posted this before but there is no answer underneath the tutor's response to guide me. Thank you in advance for your help. I really appreciate it. p^0x^2y(x^3y^1-3x) Click here to see answer by sofiyac(695)

 Question 470425: I'm to solve for x. The equation is x^-1/7=1/4. How do I get rid of the -1/7 exponent? Click here to see answer by sofiyac(695)

 Question 471701: I need help solving this question. The problem is: Simplify the expression if possible 43·45 and write your answer as a power (using exponents). It would be greatly appreciated if I could get a response ASAP. Thank you so much to whoever can answer my question. Click here to see answer by Alan3354(31510)

 Question 472220: If (x^2)(y^3)(z^5) is positive, which product is always positive? A) xz B) (y^2)z C) yz D) xy E) y(z^2) Please explain how I could approach this probelem (ie. plugging in numbers...?) and why the answer is correct. Thanks! Click here to see answer by richard1234(5390)

 Question 472217: If (x^2)(y^3)z < 0, which of the following statements must be true? I. yz < 0 II. xz < 0 III. xy < 0 A) I only B) I and II only C) I and III only D) II and III only E) I, II, III Please explain how I could approach this (ie. plugging in numbers?...) and why the answer is correct. Thanks! Click here to see answer by richard1234(5390)