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

Tutors Answer Your Questions about Exponents (FREE)

Question 231706: write each product using an exponent. Then find the value of the power to the following:
6X6
5X5X5X5
Click here to see answer by bamaboy(14)

Question 232156: 5m-2m+13=6m+1
Click here to see answer by checkley77(12569)

Question 232156: 5m-2m+13=6m+1
Click here to see answer by rfer(12647)

Question 232744: Negative 8 in parentheses with negative 2 exponent outside parentheses, how do you solve it?
The original problem was 2 to negative 3rd power in parentheses with negative 2 power (exponent) outside parentheses, equals 2 to negative 3 power with negative 2 power in parentheses. I calculated that the first part of the equation was the negative 8 in parentheses with negative 2 exponent outside parentheses. Did I do that right? I came up with 64 but I think this is wrong. This is terrible. I'm trying to tutor pre algebra to 8th graders and look at me!
Click here to see answer by Alan3354(30983)

Question 232871: Write exponential notation
(-5)^ - 3 .5
36 + 4 . l6 - 7l . (-1)^5

Also need help on this one:
Simplify, assume that no denoninator is 0^0 is not considered

(a^8b^3)(a^4b)

And then this last one:
Express using positive exponents then simplify if possible

10a -1
b-7c-3
Click here to see answer by solver91311(16872)

Question 232865: I am having problems figuring out the signs. Like when to change the signs from negative to positive. And when does the number become negative. Do I take the largest number and make it positive????
Click here to see answer by Alan3354(30983)

Question 232872: 1.Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution. Express the answer in scientific notation to two decimals places unless requested otherwise.
If the distance from the earth to the sun were 92,900,000 miles, how long would it take a rocket, traveling at 2.8 × 103 miles per hour, to reach the sun? (Round to three places)

2.A semicircular window of radius 10 inches is to be laminated with a sunblock coating that costs $0.85 per square inch to apply. What is the total cost of coating the window, to the nearest cent? (Use п = 3.14. Hint: Area of Circle: A = пr2)

3.A square light-switch plate is made which measures 6 inches on each side. A square hole measuring 1 inch on each side is left in the center. If the cost to construct the plate is $3.50 per square inch, what is the construction cost? (Hint: Use A = s2)

4.A cylindrical drum has a diameter of 3 feet and a volume of 45 cubic feet. What is the height of the drum? (Hint: Use V = пr2h)

Click here to see answer by rfer(12647)

Question 233273: (4.2X10^3)(1.5X10^6) i need this put into scienific notation and how the steps to doing it?

Click here to see answer by jsmallt9(3296)

Question 233477: x^2-6x-27
_divided by_
x+3
When the teacher does it in class it looks so easy.I tried synthetic division but it does not come out right.I tried dividing -3 into x^2-6x-27 but I can not figure out how many times -3 will go into x which would actually be 1x,so I am stuck at the first step.

Click here to see answer by Theo(3458)

Question 233492: how do I solve x to the -3 power in parenthesis and a 2 outside the parenthesis? I know for the negative exponent I make it 1/x to the 3rd but how do I square a fraction?
Click here to see answer by stanbon(57250)

Question 233666: Can you help me?
Perform the indicated operation
3x^2(5x^3-7x^2+4x-1)
Click here to see answer by Theo(3458)

Question 233661: Can you help me evauate the polynomial for the given value of x. x=-3
2x^3+5x^2-x+40

Click here to see answer by rfer(12647)

Question 233662: Can someone help me?
perform the indicated operation
-15x^7+40x^5/-5x^3
Click here to see answer by rfer(12647)

Question 233667: How do you find the vaule of the polynomial x^3-5x+1 when x=3
Click here to see answer by rfer(12647)

Question 234149: Can someone explain to me if there is rule about when the exponents are 0?
when adding like terms x^0 is cancelled? but when solving a problem 2^0 is 1?
I feel like im missing something?
Click here to see answer by solver91311(16872)

Question 234254: Im trying to help my child with math, how do i help him with exponents and square numbers, for example 2 to the 9th power is it429?
Click here to see answer by rfer(12647)

Question 234274: a=3,b=5,and c=9
2a(b^2-2b)-2c= Correct answer is 73 how?
2x3(5x5-2x5)-2x9
6(25-10)-18
6(15)-18
6x15=90-18=72 not 73.
Thank you so much for your help.
Click here to see answer by rfer(12647)

Question 234576: I need help simplifying this problem:
x^2-2x-8
__________
4-x
Click here to see answer by jsmallt9(3296)

Question 234214: In standard exponents what does 12, base 12 mean?
Click here to see answer by ankor@dixie-net.com(15639)

Question 234669: what is negative 5 to the 5th power times negative 5 to the negative 2nd power
Click here to see answer by Alan3354(30983)

Question 234973: simplify the following expression -(-6y+u)+4(u+5y)
Click here to see answer by checkley77(12569)

Question 235079: Can you please help me solve problems such as . What is the value of n? I am trying to assist an algebra student with her homework and teach 5th grade. It has been awhile since I have done algebra. Thank you
Click here to see answer by Theo(3458)

Question 235250: { { { 2x^5 X 2x^4 } } }
do you multiply the 2's or do you just leave them the same
Click here to see answer by scott8148(6628)

Question 235278: what is the gcf of 5p and 20p to the second power:?

Click here to see answer by stanbon(57250)

Question 235773: where can i put parenthesis in this equation to make it equal 52?
15-5+7*2+4
Click here to see answer by josmiceli(9661)

Question 235875: (2^5)4 simplify the expression
Click here to see answer by Alan3354(30983)

Question 235905: simplify
12a(to the 5th)/6a
Click here to see answer by nyc_function(2733)

Question 236043: I think this is the right category... Can you please explain this? Thanks sooo much!!
Simplify each of the following, if possible. Write your answers in the exponential form a^b.
(a) 2^4 * 2^5 * 2^8
(b) 3^4 + 2 * 3^4
(c) 2^50 * 2^50

Click here to see answer by stanbon(57250)

Question 236049: I'm not sure if this is the right category?? But can you please explain this to me? I think the argument is correct but I don't know how to explain the process. Thanks sooooo much!!!
Hosni gave the following argument that - (a + b) = -a + -b, for all integers a and b. If the argument is correct, supply the missing reasons. If it is incorrect, explain why not.
-(a + b) = (-1)(a + b)
= (-1)a + (-1)b
= -a + -b

Click here to see answer by stanbon(57250)

Question 236456: Solve for the variable C.
F=9/5C + 32

(9/5 is a fraction with the numerator being 9 and the denominator being 5. The variable C is nect to the fraction.)
thank you so very much for help with this homework problem.
Click here to see answer by jim_thompson5910(28504)

Question 236458: I need help solving this word problem please:
A rectangle is 4 cm longer than it is wide. If the length and width are both decreased by 2 cm, the area is decreased by 24 cm2 (I'm trying to type cm squared). Find the dimensions of the original rectangle.
Thank you so very much for your help on this math homework problem.
Click here to see answer by JimboP1977(308)

Question 236538: How do you simplify (3x)^3
Click here to see answer by JimboP1977(308)

Question 236765: 8 to the fouth thirds power
Click here to see answer by scott8148(6628)

Question 236807: factor: x8 – 3 x7 – 4x6
(the problem is x to the 8th power minus 3x to the the seventh power minus 4x to the sixth power)
Click here to see answer by checkley77(12569)

Question 237098: How do you simplify
(3x²y)(-2xy)³

Click here to see answer by cowgirl30(8)

Question 237270: what is the exponent of 10?
Click here to see answer by rapaljer(4667)

Question 237279: simplify
(a^2b^3/c)^0
Click here to see answer by rapaljer(4667)

Question 237371: well i wanted to know did yall get the answer cause i couldnt figure it out so do yall know the answer and can yall show me how yall got the answer
Click here to see answer by Alan3354(30983)

Question 237417: How would i find an expression for the area of a triangle?
The triangle is a 45-45-90 degree triangle with the two sides equaling x^2 and 2x^3.
I got the equation y=1/2(2x^3)(x^2) and i am not sure if i am supposed to simplify it, or solve it, or if that is even the right equation.
Click here to see answer by stanbon(57250)

Question 237448: How would I simplify -3xy/9x^3y^-4
Click here to see answer by stanbon(57250)

Question 237413: how would i simplify?
{ { { 5x^2y/2x^-1y^3 } } }
Click here to see answer by College Student(505)

Question 237458: -1 exponent 6
Click here to see answer by solver91311(16872)

Question 237460: -1 exponent 6
Click here to see answer by College Student(505)

Question 237473: -1 exponent 6
Click here to see answer by checkley77(12569)

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