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

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Algebra: Exponents and operations on exponents

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Question 112650: Explain why 2 to the -3 power equals to 1 over 2 to the 3 power?
Click here to see answer by josmiceli(3013)

Question 112669: Solve.
(7p+6q)to the 2nd power
Click here to see answer by jim_thompson5910(13794)

Question 112781: Find the square.
(7p+6q)squared
Click here to see answer by SHUgrad05(58)

Question 112785: Write the expression for the product.
The square of 5 more than a number
Click here to see answer by checkley71(8405)

Question 112782: Find the square.
(w-1/4)squared
Click here to see answer by checkley71(8405)

Question 112856: Find the square.
(7p+6q) squared
Click here to see answer by jim_thompson5910(13794)

Question 112856: Find the square.
(7p+6q) squared
Click here to see answer by bucky(1732)

Question 112980: how would I get the answer for this problem
4^2(6-2)+2^3(7+3)=
Click here to see answer by SHUgrad05(58)

Question 113235: can you find by mod (100) the last two number of

and

Click here to see answer by stanbon(26297)

Question 113147: Divide.
7x to the 5th power y to the 5th power - 21x to the 4th power y to the 4th power + 14x to the 3rd power y to the 3rd power OVER 7x to the 3rd power y to the 3rd power
Click here to see answer by ankor@dixie-net.com(6693)

Question 113797: Simplify (5x-2)2
* The -2 and 2 are both exponents.
Click here to see answer by josmiceli(3013)

Question 114272This question is from textbook
: N to the second power = 225This question is from textbook

Click here to see answer by SHUgrad05(58)

Question 114316: please solve n^3=8000
Click here to see answer by bucky(1732)

Question 114316: please solve n^3=8000
Click here to see answer by scott8148(3385)

Question 114653This question is from textbook bEGINNING ALGEBRA

: I a having a hard time understanding how to do ths problem
48x^5y^3
________
15a^4b^2This question is from textbook bEGINNING ALGEBRA

Click here to see answer by edjones(3299)

Question 114558: What is -3(2x^3y^-1)^-3
Click here to see answer by edjones(3299)

Question 114686: write the equation of the line that contains the point (5,-2) and is perpendicular to the line 5x-2y=3
Also, how do I send you a problem that contains exponents when all I have is a standard keyboard?
-Jamie
Click here to see answer by ankor@dixie-net.com(6693)

Question 115510:
simplify the expression -2k^2m4(-5km^3)
Click here to see answer by checkley71(8405)

Question 115510:
simplify the expression -2k^2m4(-5km^3)
Click here to see answer by edjones(3299)

Question 115818: Please help me to solve for R:
C=K(R/(R-r))
Thanks.
Click here to see answer by stanbon(26297)

Question 116593: simplify
(s 3 powert)2nd power
Click here to see answer by jim_thompson5910(13794)

Question 116594: simplify
54m 3 power/9m 4 power
Click here to see answer by jim_thompson5910(13794)

Question 117309: Positive exponents only (9h)-4power w-5power y0 power z-3power
Click here to see answer by MathLover1(1183)

Question 117699: simplify
x^101+x^100+x^99
Click here to see answer by jim_thompson5910(13794)

Question 117743: What is the value of R in this equation:
(1-R^-48).02083 = R - 1

Click here to see answer by MathLover1(1183)

Question 117990: (X-4)^2+3(X-5)
Click here to see answer by stanbon(26297)

Question 118663: Whaqt is the remainder when 2008^2007 is divided by 5
Click here to see answer by scott8148(3385)

Question 118763: This has us stumped.Its called Ms.DeYoungs BUNGEE
All numbers must meet the following requirements:
1. must be even numbers
2.must be a multiple of 12
3.must be a perfect square
4.must possess at least 1000 factors
5.If a standard numeral, must have exactly four terminal zeroes showing
A: 2 8th power X 3 4th power X 5 forth power X 17 4th power
B: 2 2nd power X 7 eigth power X 11 forth power X 17 sixth power X 23 fifth power
C: 2 forth power X 7 eigth power X 13 forth power X 19 2nd power
D: 2 forth power X 3 eigth power X 5 forth power X 13 2nd power X 97
E: 3 fifth power X 5 seveth power X 11 forth power X 13 2nd power X 23
F: 2 sixth power X 3 2nd power X 5 forth power X 7 forth power X 23 sixth power
We have to determine which ones don't meet the criteria and then explain which primes they should "recruit" to allow them to meet the criteria.

Click here to see answer by Edwin McCravy(2922)

Question 118828: 2^400 divided by 2^396 minus 2^3 = ?
i already solved 2^3 it equals 8, but i can't figure out how to solve the other exponants because it doesn't work on my calculator, and i tried but can't do it by hand, because i can't multiply 2, 400 times it would take hours. also i don't know how to divide exponants, since i can't figure out how to solve them.
Click here to see answer by Earlsdon(4900)

Question 118841: XY^9 -7y
_____ * _______
3Y^-2 21x^5
Click here to see answer by jim_thompson5910(13794)

Question 119223This question is from textbook Glencoe Mathimatics Pre-Algebra
: How do you solve 1 over p to the 4th power?This question is from textbook Glencoe Mathimatics Pre-Algebra

Click here to see answer by ankor@dixie-net.com(6693)

Question 119359: Solve each of the following equations for x.

2/5 = x-2/20
Click here to see answer by checkley71(8405)

Question 119378: I hate word problems! help please!
Number problem. If one-half of one integer is subtracted from three-fifths of the next consecutive integer, the difference is 3. What are the two integers?
Click here to see answer by checkley71(8405)

Question 119469This question is from textbook Mathematicsconcepts and skills
: 15x2y2/5xy2This question is from textbook Mathematicsconcepts and skills

Click here to see answer by chitra(359)

Question 119536This question is from textbook
: How do you do this problem?

4 to the ninth power times (-1/4)to the fifth powerThis question is from textbook

Click here to see answer by checkley71(8405)

Question 119611: Could someone help me explain: why x times x is equal to x squared not 2x. Thank you
Click here to see answer by benbjlin(6)

Question 119637: TRYING TO UNDERSTAND THE WAY TO WRITE EXPRESSIONS IN EXPONENTIAL FORM AND EVALUATING THE POWER. I THINK IF I GET A BETTER EXPLANATION I COULD UNDERSTAND.
q. TWO CUBED = IS THIS THE SAME AS 2 X 2?
q. NINE TO THE YTH POWER = IS THIS THE SAME AS WRITING 9 AND THE SMALL Y ABOVE IT?
q. 10 TO THE 5TH POWER = IS THIS THE SAME AS SAYING 10X10X10X10X10?
ASKING THESE QUESTIONS TO SEE IF I AM DOING THIS CORRECTLY.

Click here to see answer by tangitehewagen(7)

Question 119828: Write in simplest form. 7x^10/21x^18
Click here to see answer by jim_thompson5910(13794)

Question 119832: solve 9/(x-3) = 8/(x+5) this is easy i know, and i am thinking too hard.
Click here to see answer by jim_thompson5910(13794)

Question 119843: please help me with this one.
multiply(3x-27)/(x^2-10x) by 6x/(9-x)
Click here to see answer by jim_thompson5910(13794)

Question 119844: (2x-6)/21 divided by (5x-15)/12 i got (x-24)/(x-105) am i right or can i keep going?
Click here to see answer by jim_thompson5910(13794)

Question 119844: (2x-6)/21 divided by (5x-15)/12 i got (x-24)/(x-105) am i right or can i keep going?
Click here to see answer by ptaylor(1578)

Question 119844: (2x-6)/21 divided by (5x-15)/12 i got (x-24)/(x-105) am i right or can i keep going?
Click here to see answer by josmiceli(3013)

Question 119842: (8x^5)/5 * 20/x^10 i think i have this one but im not sure, please help
Click here to see answer by jim_thompson5910(13794)

Question 119840: ok i think i got the right answer to this one. i just want to be sure.
(5x-20)/(7x-28) i got 32/m^5. am i right?
Click here to see answer by josmiceli(3013)

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