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

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 Question 84712: bTO THE POWER OF 2 - 2bc+ cTO THE POWER OF 2 = Click here to see answer by bucky(2189)

 Question 85107: How Do I solve this problem? I do not know how to get the number squared on the computer. For Example 4(-2)Squared+8(-2)+3(-2)+6 Click here to see answer by stanbon(60771)

 Question 85198: Hello out there,I need some help with some problems,the first one is,A right triangle has legs of lengths 10 and 24.What is the length of the hypotenuse?Round to the nearest tenths.The next one is,A right triangle has a hypotenuse equal to 35 and one leg of length 30.Find the length of the other leg to the nearest tenth.The next one is,Write -4 times y times y times y using exponents.And the last one is,Write 3cd(to the third power) as a multiplication expression.Thanks to whoever can help. Click here to see answer by checkley75(3666)

 Question 85260: Tutor: Can you help me please..... the problem is to simplify, using positive exponents (z^5 x^5)-3 Thank you for your help! Click here to see answer by checkley75(3666)

 Question 85315: Hello out there,I'm having some trouble with some problems that I need help with,the first one is,A rectangle has side length 30 mm and diagonal length 34 mm.Find the length of the other side of the rectangle to the nearest whole number.Second one is,Estimate the value of the square root:0.85.Next one is,If x=0.04,what is the value of x?The last one is,Express 0.0049 in scientific notation.Thanks for whoever can help. Click here to see answer by checkley75(3666)

 Question 85288: Evaluate f(x) = 3x5 – 5x3 + 2x2 + 6 for: a. x = 0 b. x = 2 c. x = -2 d. 2x Click here to see answer by scianci(186)

 Question 85418: Write 4 • 4 • 4 • 4 • 4 in exponential form Click here to see answer by praseenakos@yahoo.com(507)

 Question 85450: Tutor please help me with this word problem, this is just a pre algebra. Thank You Very much. The number is the smallest number that can be written as a power of 3, 9, or 27. Click here to see answer by scianci(186)

 Question 85451: please help me with this word problem. Thank You! The number is greater than 2^5 but less than 2^6. it is a power of 7. What is the number. Click here to see answer by scianci(186)

 Question 85477: Hello out there,I need some help with some problems,the first one is,A rectangle has side length 30 mm and diagonal length 34 mm.Find the length of the other side of the rectangle to the nearest whole number,for that problem,I;m coming up with three answers all the time,45,16,and 7.The next problem is,A right triangle has legs of lengths 10 and 24.What is the length of the hypotenuse?Round to the nearest tenths,for that one I got 26.0,is that correct?The next one is,A right triangle has a hypotenuse equal to 35 and one leg of length 30.Find the length of the other leg to the nearest tenth,and for that one I got three different answers as well,46.1,18.0,and 2.2.And the last one is,Estimate the value of the square root:0.85,and for that one I got four different answers,3,2,0,and 1,thanks for whoever can help. Click here to see answer by stanbon(60771)

 Question 85513: 2 2 b -2bc+c If b=3 and c=-2 on the problem b has an exponent of 2 and c has an exponent of 2. Click here to see answer by stanbon(60771)

 Question 85519: Hello out there,I need some help with some problems,the first one is,Write 3cd^3(to the third power)as a multiplication expression.The next one is,Simplify:5c^-5 d^-1.Next is,Simplify:(11cd)(2c^2d)(d).And the last one is,Simplify:(3x^4y)(xy^2).Thanks to whoever can help. Click here to see answer by stanbon(60771)

 Question 85781: Hello out there,I need some help with some math problems,the first one is,Simplify:5^2x(times)5^4.The next one is,Evaluate -5x^4z,if x=-2 and z=3.The next one is,Simplify:-14m^2n divided by 7m^2.And the last one is,Express 7,200,000,000 in scientific notation.Thanks for whoever can help. Click here to see answer by scianci(186)

 Question 85835: I know this is a very basic question, but I cannot remember if there is any way of figuring 1.02^20 other than the traditional long way of doing 1.02x1.02x1.02 etc etc. Is there an easier formula or way to do this? I also need to know if 10% changed to a decimal is .010 or .10 Thank you. Click here to see answer by stanbon(60771)

 Question 85991: How do you factor 16x to the 4th power minus 1. Click here to see answer by 303795(602)

 Question 85954: i cant find solution on this algebra problem because of lack knowing on this proble(4x^4 y^3) (-5x^5 y^2) Click here to see answer by tutorcecilia(2152)

 Question 85952: i cant find solution on algebra problem because of lack knowing of this problem 2^3 2^3 x^4 x y^3 y^7 (4^4 y^3) (-5x^5 y^2) (4nx^5n) (5nx^4n) (2^3)^2 (x^2)^5 (x^n)^n (y^4)^6 Click here to see answer by ankor@dixie-net.com(16523)

 Question 86134: 1) Factor by grouping: 18a^3– 24a^2b + 15ab^2– 20b^3 2) Solve the following: 18x^2 + 9x – 2 = 0 3)Multiply: (x + 2y)^4 4)Simplify the following expression: (1/2)^3 + (1/3)^-2 - (1/4)^-2 Click here to see answer by stanbon(60771)

 Question 86120: 1. How do I perform the indicated operation? 3 5 ___ - ___ 2b 3b^3 2. Subtraction: _____2x____ - ___7___ x^2-13x+42 x-6 3. Find LCD: _____7_____, ___8___ a^2+2a-63 a+9 4. Perform the indicated operation. Simplify if possible. ___6a^2-8a-8___ / ___a-2___ 2a^2-9a-56 a-8 Thanks! Click here to see answer by stanbon(60771)

 Question 86221: Not even sure how to begin this one: ((6x^4/2xy^3))^3 Click here to see answer by sofiyacherni(99)

 Question 86220: Just taking algebra again after 21 years. Have a simple question. How do I solve (3/5)^-2? Do I multiply 3/5 twice and it is positive because of the two negatives? That answer would be 9/25?? Click here to see answer by ptaylor(2058)
 Question 86220: Just taking algebra again after 21 years. Have a simple question. How do I solve (3/5)^-2? Do I multiply 3/5 twice and it is positive because of the two negatives? That answer would be 9/25?? Click here to see answer by sofiyacherni(99)

 Question 86338: Good day to all,I need some help with some problems,the first one is,Evaluate 2x^-1y^3 if x=2 and y=-1.The next one is,Express 7,200,000,000 in scientific notation.The next one is,Express (1.4 times 10^7)(2.5 times 10^2)in scientific notation.And the last one is,Evaluate -5x^4z,if x=-2 and z=3.Thanks to whoever can help me. Click here to see answer by jayanthihemkos@yahoo.com(87)

 Question 86493: (3m)to the third power x (2m-to the second power)to the fourth power Click here to see answer by tutorcecilia(2152)

 Question 86687: Hello out there,I need some help with some problems,The first one is,Simplify:5^2 times 5^4.Second one is,Evaluate -5x^4z,if x=-2 and z=3(for that I got two different answers when I did it,I got -240 and -120).The next one is,Write 3cd^3 as a multiplication expression.And the last one is,Simplify:-14m^2n over 7m^2.Thanks to whoever can help. Click here to see answer by checkley75(3666)

 Question 86760: Good day to all,I need some help with some problems,The first one is,Write 3cd^3 as a multiplication expression.Second was is,Simplify:-18m^5n^2/6m^-4n^3.The next one is,Simplify:f^3g^4/f^4g^6.And the last one is,Express 8times10^6/4times10^2 in scientific notation.Thanks for whoever can help. Click here to see answer by tutorcecilia(2152)

 Question 86846: Q WHAT IS THE VALUE OF (-1) TO THE POWER IRRATIONAL NUMBER Click here to see answer by stanbon(60771)

 Question 87165: Good day to all,I need some help with some problems and thanks to whoever can help,the first one is,Express 8times10^6/4times10^2 in scientific notation.The next one is,Simplify:f^3g^4/f^4g^6.The next one is,Simplify:-18m^5n^2/6m^-4n^3.And the last one is,Write 3cd^3 as a multiplication expression. Click here to see answer by stanbon(60771)

 Question 87247: Write in descending-exponent form, and give the degree. 4x^5 + x^8 -7 Click here to see answer by jim_thompson5910(29613)

 Question 87421: Good day to all,I need some help with some problems,they only thing is I don't have the square root symbol on my computer,so I will use this for the square root symbol(square root).The first problem is,If x=(square root)0.004,what is the value of x and for that problem I got two answers,the first one was 0.02,and the other was 0.08.And the last problem is,Estimate the value of the square root:(square root symbol)0.85,and for that one I got four different answers,it was 3,2,1,and then 0.Thanks for whoever can help me. Click here to see answer by tutorcecilia(2152)

 Question 87669: Factor: 16x^4 – 2xy^3 It has been a while since I had Algebra, Trig, etc. 1. How do you express (say) this sequence above? 2. What is the answer? 3. Finally, please direct me to the appropriate page on your web site where I might be able to learn a little more about this, and perhaps "brush up" on what I have forgot? Many, many thanks for your assistance, Sam Genovese Click here to see answer by rapaljer(4670)