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

Tutors Answer Your Questions about Exponents (FREE)

Question 99560: Hello,
I'm swamped here. I am really no good at math. I have to show the steps to this problem for my professor and for me, so I can see how it's done. The problem is:

evaluate each algebraic expression for the given value of the variable:
-6(x + 3) when x = 2

Click here to see answer by doukungfoo(195)

Question 99565: Evaluate. (-1)(�1) � 25
Click here to see answer by scottnascar(12)

Question 100162: -xy2
x3y2 my ? is if you first eliminate the y2 or you subtract the -x to x3?

Click here to see answer by checkley71(8403)

Question 100192: Please so me how to solve..-4 with 2 as an exponent +1 with 3 as an exponent + -15 with 0 as an exponent. I tried -4x-4=16 + 1x1x1=1 + -15 with 0 exponent would be 1? 16+1+1=18 but this answer is wrong book says answer is -14 please help.
Click here to see answer by Earlsdon(6294)

Question 100324: divide c to the 18th power divided by c to the 11th power
Click here to see answer by checkley71(8403)

Question 100323: evaluate 7 - 2 (15 - 2 to the 3rd power) divided by 3 to the 2nd power - 5 (3)
That's the best I can type it.
Thanks
Click here to see answer by checkley71(8403)

Question 100313: Evaluate 5 times 3 to the 2nd power - 7 times 3
Click here to see answer by checkley71(8403)

Question 100319: evaluate 4 to the 2nd power + 2 times 7 - (5 times 4 -15) THis is the best way I can type it. Thanks
Click here to see answer by edjones(8007)

Question 100383: Evaluate the following using the rules of exponent.((-2)3)4*(-2)6*(-2)-5
Click here to see answer by elima(1433)

Question 100463: please advise, how do you figure out negative 1/4 to the negative 3 power?
Click here to see answer by checkley71(8403)

Question 100463: please advise, how do you figure out negative 1/4 to the negative 3 power?
Click here to see answer by edjones(8007)

Question 100527: how to slove -9 exponet 0?
Click here to see answer by stanbon(75887)

Question 100317: divide 9d to to the 6th power m to the 10th power times 3d to the 6th power m to the 10 power divided by 3d to the 6th power m to the 6th power. I'm so sorry but this is the best way I can type it. If you do understand this can you please show steps taken to get the answer.
Thanks
Click here to see answer by ankor@dixie-net.com(22740)

Question 100805: What is 5 to the zero exponent....Out answer sheet say 1....I think it should be 5 or 0 which is it?
Click here to see answer by jim_thompson5910(35256)

Question 100805: What is 5 to the zero exponent....Out answer sheet say 1....I think it should be 5 or 0 which is it?
Click here to see answer by edjones(8007)

Question 100818: (4x^2)(5x^4)
Click here to see answer by jim_thompson5910(35256)

Question 100948: Do you know any other websites that can show me free worksheets on how to work on exponents? I need them tomorrow.

Yours,
Arialyn
Click here to see answer by stanbon(75887)

Question 100948: Do you know any other websites that can show me free worksheets on how to work on exponents? I need them tomorrow.

Yours,
Arialyn
Click here to see answer by bucky(2189)

Question 99797: (a-b)(a-b)
Click here to see answer by edjones(8007)

Question 102471: Simplify? the square root of 16z to the 12 power
Click here to see answer by jim_thompson5910(35256)

Question 102471: Simplify? the square root of 16z to the 12 power
Click here to see answer by Fombitz(32388)

Question 102760: "If 5 to the 21st power * 4 to the 11th power = 2 * 10 to the nth power, what is the value of n?"
With a calculator, the answer is 21. However, I would appreciate knowing how to solve this problem without a calculator. Thank you.
Click here to see answer by stanbon(75887)

Question 102999: construct an algebraic expression that represents the specified quantity in the verbal statement.
the amount of money in dollars represented by m in dimes and n quarters.
Click here to see answer by stanbon(75887)

Question 102997: perform & simplify
5y - y[9+6(y-2)]
Click here to see answer by HyperBrain(694)

Question 103881: Could you help me with the equation

Click here to see answer by checkley75(3666)

Question 104164: 10-3
Click here to see answer by edjones(8007)

Question 104236: what is the last non zero digit of 96! ?
Click here to see answer by MathLover1(20849)

Question 104541: Nlog base 2 N=3500 I tried base changes
log 3500=log N^N/(log 2)
(log 3500) (log 2)=log N^N
(3.54)(.301)=log N^N
1.066=log N^N
10^1.066=N^N
11.62=N^N
N is about 3.4
It doesn't check out Help please
Click here to see answer by stanbon(75887)

Question 104571: What is 2 to the negative 5 times 4 to the negative 3 ? I'm getting an answer in decimal form....4.8828125 to the negative 04 .Please help
Click here to see answer by Fombitz(32388)

Question 104509: i'm not sure how to solve this problem: (-3x^3y^2)(-2xy^-3)/-9x^2y^-5
Click here to see answer by edjones(8007)

Question 105217: i have been working on the problem and not figuring out where they got there answer if someone could explain it to me...... (3x+7)exponent of 2 outside of ()
Click here to see answer by edjones(8007)

Question 105265: what is 2 to the 98th power divided by 5?
All I need to know is the remainder in that problem.
Click here to see answer by scott8148(6628)

Question 105260: Hey I need help on number 63 on page 212 please.I gave you the ISBN that is on my textbook.
Click here to see answer by elima(1433)

Question 105469: 3x to the negative 6 power y to the negative 5 power
Click here to see answer by checkley75(3666)

Question 105629: what is 501-n=152 I think I know the answer but I'm not sure. and how did you find out the answer
Click here to see answer by tutorcecilia(2152)

Question 105715: x^-3/y^2
Click here to see answer by HyperBrain(694)

Question 106186: Hi its me again, I have another problem, thank you.
(5^8)^4
_______
(5^7)^4
I first expressed 5x5x5x5x5x5x5x5, then I expreseed 5x5x5x5x5x5x5, I must say Iam lost at this point
Click here to see answer by stanbon(75887)

Question 106262: (6x^7)^-4
___________ = 1/3x^20
(2x^2)
I keep coming up with this answer and I'm not sure if I have it right. Can you please help me?
Click here to see answer by Fombitz(32388)

Question 106191: Show that a quick way to square a positive integer ending in five is to place twenty-five after the product of the number formed by the digits preceding the five and the next integer. for example, 65(squared) = 4225 [6x7 (the next integer) =42, then tack on 25] and 125(squared) = 15,625 [12x13 (the next integer) = 156, then tack on 25].
Click here to see answer by Fombitz(32388)

Question 106343: 2x^7/(3x^4)^-2
Click here to see answer by checkley75(3666)

Question 106342: 9x^-2/24x^12
Click here to see answer by stanbon(75887)

Question 106276: How do you solve fractions with exponents?
Click here to see answer by elima(1433)

Question 106924: The question is:
What is the greatest positive integer n such that 2^n is a factor of 12^10? I guessed and got the answer correct: 20. But I don't know how to work this problem.
Click here to see answer by scott8148(6628)

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