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 77100: My teacher is not very good at explaining the lessons to me. I do not get the concept of dividing exponents. PLEASE HELP ME! Click here to see answer by stanbon(57243)

 Question 78476: what does^this mean in an equation? I haven't been to school in 20 years, I am just now going back to college Click here to see answer by bucky(2189)

 Question 78452: (x + 5)^2 Click here to see answer by checkley75(3666)

 Question 78647: how do you know when to multiply the exponet? Click here to see answer by Earlsdon(6287)
 Question 78647: how do you know when to multiply the exponet? Click here to see answer by jim_thompson5910(28504)

 Question 78992: 5 to the 9 power divided by 5 to the 6 power=? Click here to see answer by mathdoc314(58)

 Question 78991: 5 to the 9 power divided by 5 to the 6 power=? Click here to see answer by checkley75(3666)

 Question 79100: This is new to me. I am asked to write in descending-exponent form, and give the degree, what does that mean and how do I do this? 7x3 – 6x4 – x6 – 4 Click here to see answer by Earlsdon(6287)

 Question 79222: This is a homework assignment and I have been trying to solve it with no luck. The problem is as follows: (x^7y^-4z^0/5^-2x^3y^-8z^-9)^2 All exponents in final answers should be positive. Final answers should have all single connecting signs and be arranged in descending order. This is what I have so far, but do not know if it is right. Homework is due Tuesday, April 24,2007. (x^7y^-4z^0/5^-2x^3y^-8z^-9)^2 = (x^7x^3/y^45^2y^8z^9)2 =(x^7)^2x^3(2)/(y^4)^2(5^2)^2(y^8)^2(z^9)^2 = x^14x^6/y^85^4y^16z^18 =x^14y^16z^185^4/x^6y^8 =5^4 x^14-6Y^16-8z^18 = 625z^18x^8y^8 Is this correct? If not, what am I doing wrong? Your reply and help is greatly appreciated. Thank you. Click here to see answer by stanbon(57243)

 Question 79753: How do I solve -4/5(x+2)=4 ? can you show me each step? Click here to see answer by tutor_paul(490)

 Question 79831: If x^9=127 then find x^4 accurate to two digits after the decimal point. Click here to see answer by Earlsdon(6287)

 Question 80074: how do you solve x^3=1 Click here to see answer by Edwin McCravy(8882)

 Question 80205: The product of two consecutive even integers is 288. find the integers. Click here to see answer by tutor_paul(490)

 Question 80527: (-3a)^5*(4a)^2 Click here to see answer by praseenakos@yahoo.com(507)

 Question 80525: 5^3*(5a^4)^2 Click here to see answer by tutorcecilia(2152)

 Question 80806: A high school football player has a rushing yards of 4045 yards for the season with 12 games. What is his average yards per game? Click here to see answer by papesmith(1)

 Question 80805: Lowe's food market increased the price of a \$.95 cola by 15%. what is the increased price? please show work Click here to see answer by stanbon(57243)

 Question 80934: Convert the numeral 1011 base 2 to a common base 10 number A. 3 B. 5 C. 11 D. None of the above Click here to see answer by Earlsdon(6287)

 Question 80935: Convert the common base- 10 number "13" to a base-2 number A. 111 base 2 B. 1101 base 2 C. 8401 base 2 D. None of the above Click here to see answer by funmath(2925)

 Question 81034: Please help me solve this problem I don't understand how to solve this at all. Thank-you very much for your help. 3 1/2 Click here to see answer by funmath(2925)

 Question 81291: Find the LCM of 6x^8 and 12x^5 Click here to see answer by stanbon(57243)

 Question 81303: Find the LCM of 7(v-3) and 21(v-3). Click here to see answer by praseenakos@yahoo.com(507)

 Question 81306: Find the LCM of q^2-4 and q^2+10q+16 Click here to see answer by praseenakos@yahoo.com(507)

 Question 81658: Hello, I go to the Moring Star Online Homeschooling Academy. And need sever help with Exponents.. I am having questions that look like this: j-7^2k^9^3kl _____________ -j^4k^2l I do not understand how to do these.. This is one of many problems they are telling me to use: To complete these problems, use the rules you have learned as necessary in this order: Power of Quotients Rule (AKA: Power of Fractions Rule) Zero Exponent Rule Power Rule Expand or evaluate any exponents Product Rule Quotient Rule I have no idea how to even start a problem like this! I was wondering if you could give me a few pages to print out of how to do each step step-by-step explanatory help.. Can you send me a link or something. ASAP.. Thanks. I appreciate your help... VICTORIA P.S. If you could send me some rules and exaples of negative numbers with that Id really appreciate it :) Click here to see answer by scott8148(6628)

 Question 81981: (x+1)11(x+1)6 Click here to see answer by checkley75(3666)

 Question 82540: multiply 10u^6 * 4u^5 Click here to see answer by 303795(595)

 Question 82444: Multiply 10u^6 * 4u^5 Click here to see answer by ssonygill(12)
 Question 82444: Multiply 10u^6 * 4u^5 Click here to see answer by checkley75(3666)

 Question 83217: What expression raised to the fourth power is ? Click here to see answer by Edwin McCravy(8882)

 Question 83296: (n4m7)4 (n2p3)6 Click here to see answer by Edwin McCravy(8882)

 Question 83331: Tutor: Could you assist me please with this problem? (6x-7)^2 Thank you very much!!! Click here to see answer by stanbon(57243)

 Question 83409: Can someone please help me with the following algebraic equation? 2x4^3-(55x2^11)/2x5^4-532=n What is n? Click here to see answer by Kalmetam(43)

 Question 83592: Tutor could you please help me perform this operation? (3x^2 +7) + (3x^2 + 9) Thank you very much! Click here to see answer by jim_thompson5910(28504)

 Question 84016: Tutor could you help me with this problem (6X-7)^2 I know the answer would be: =36x^-14 =36/x^14 but my instructor wrote: You have to either use a formula or rewrite your problem (6x-7)(6x-7) Would it then be: 36-7=29 * 29 = 58???? I don't understand this...Please Help!!!!! Thank you Click here to see answer by stanbon(57243)

 Question 84212: [25 ÷ (23 - 3)] ÷ 2= Click here to see answer by checkley75(3666)

 Question 84199: the distance from the sun to earth is approximately 1.5 times 10 to the power of 8 km. The distance from the sun to the planet Neptune is approximately 4.5 times 10 to tye power of 9 . What is the ratio of Earth's distance from the sun to neptune's distance from the sun? Click here to see answer by ptaylor(2048)

 Question 84461: Tutor could you please help me with the following math problem?? Thank you for your help! How do I simplify this expression, writing the result using positive exponents. (x^2)^8x ________ x^9 Click here to see answer by tutor_paul(490)

 Question 84532: ((2x)^2)((4x)^4)((8x)^6)= a.) (2^22)(x^12) b.) (2^24)(x^12) c.) (2^26)(x^12) d.) (2^28)(x^12) I know the answer is d. but how would you arrive at that answer without multiple choice answer. Say this was on a test and it wasn't multiple choice, how would you arrive at the correct answer in that format. I understand how to get the x^12 but I do not know how to arrive at 2^28. How do get from 268435456 to 2^28? Click here to see answer by jim_thompson5910(28504)

 Question 84569: Tutor: I still don't understand this one: How do I simplify this expression and write the result using positive exponents only The expression is: ((x^2)^8x)/x^9 Thank you! Click here to see answer by funmath(2925)

 Question 84650: Tutor can you please help me multiply this expression Thank you! (5m-6n+7) (2m-3n-4) Click here to see answer by liz_gcmama(8)

 Question 84756: Tutor could you please help me with this long division? Using long division divide 7x^3 -3x^2 -4x+5 divided by 7x -1 Thank you for your help I started by doing this: 7x-1/7x^3x^2-4x+5/-7x/x^2 Click here to see answer by Edwin McCravy(8882)

 Question 84755: Tutor: Can you help me: How do I simplify this expression using positive exponents? (-2a^-4b^2c^-7) (3^-2a^-2b^-5c^9) I started by -2*9 a^-6b^-3c^2 -18c^2/a^6b^3 but I got confused about dividing! Thank you! Click here to see answer by Edwin McCravy(8882)

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