Please help?

Question

Please not the ?^? means the number following it is an exponent. For example x^2 means x squared.





1. Simplify: m^3 (m^2).





2. Simplify: x^2 / x^5





3. Write 0.00317 in scientific notation.





4. find the product, use scientific notation to state your answer:



2.3(10 ^ -2) times 4.1(10^-3)





5. What is the degree of the following polynomial: 3b^4 + 3b^3 + 2 b^2 + 2 ?





6. Find the sum of the two polynomials:



(3y^2 - 7y + 4) (2y^2 + 3y - 2)





7. Find the product of the two following polynomials:



(2y + 2) (3y^2 + 2)





8. Find the product: (x-1) ^ 2





9. Find the quotient: (16 x^2 + 4) / 2





10. Find the quotient: (x^2 + 5x - 50) / (x - 5)

Answer 1

1) when you are multiplying them together, just add the exponents. m^5

2) x^2 / x^5 is the same as (xx) / (xxxxx), so simplify it by removing 2 x's from each side, and you have 1 / (xxx) which equals 1/x^3

3) 0.00317 = 3.17 x 10^-3 to do a problem like this just count how many places you have to move the decimal to get it with only one number on the left. If you have to move it to the right, then the answer is 10^ negative how many places you counted. If you move it to the left, it's 10^ positive.

4)
2.3(10 ^ -2) times 4.1(10^-3)
(2.3)(4.1)(10^-2)(10^-3)
(2.3)(4.1)(10^-5)
(9.43)(10^-5)
9.43 x 10^-5

5) hmmm, it's been a really long time, but i believe the degree of the equation is the highest exponent, so 4th degree?

6) first multiply every number inside the first parenthesis together with the numbers in the second set of parenthesis, then simplify.
(3y^2 - 7y + 4) (2y^2 + 3y - 2)

(3y^2)(2y^2) + (3y^2)(3y) + (3y^2)(-2) + (-7y)(2y^2) + (-7y)(3y) + (-7y)(-2) +(4)(2y^2) + (4)(3y) + (4)(-2)

6y^4 + 9y^3 - 6y^2 - 14y^3 - 21y^2 + 14y + 8y^2 + 12y - 8

(6y^4) + (9y^3 - 14y^3) - (6y^2 - 21y^2 + 8y^2) + (14y + 12y) - 8

6y^4 - 5y^3 - 19y^2 +26y - 8

use that same principle to do 7 and 8, they are the same line of thought, just easier.

that's all i've got, i should be working, not doing algebra.

Answer 2

The answers are:

1) m^5

2) x^-3

3)3.17 x 10^-3

4) 9.43 x 10^-5

5) 4th degree

6)Find the sum of the two polynomials:

To be consistent with the word description, you should have written it as

(3y^2 - 7y +4) + (2y^2 + 3y - 2)

Answer: 5y^2 - 4y + 2

7) 6y^3 + 6y^2 + 4y + 4

8) x^2 - 2x +1

9) 8x^2 + 2

10) ( x + 10 )

I won't work out the problems for you in case you are trying to get someone to do your homework for you.

Answer 3

1.) m^5 you have to add the exponents when the base numbers are the same

2.) x^3 if the exponent on the bottom is larger just subtract the top exponent from the bottom exponent

3.) 3.17*10^-3

4.) 9.43*10^-5

5.) 4

6.) 6y^4+9y^3-6y^2-14y^3-21y^2-14y+8y^2+12y-8
6y^4-5y^3-19y^2-2y-8

7.) 6y^3+6y^2+4y+4

8.) (x-1)^2

9.) i can't help with this one

10.) i can't help with this one

Answer 4

Dont you know how to do your own homework .... it's gonna be funny when you have a test over this stuff and your not gonna be able to do any of it because you haven't been doing your homework. Dont be dumb ... do your homework so that you don't look stupid.

Answer 5

I agree. Do your own homework. You'll never learn if you have someone else do it for you. If you have a specific concept you don't understand, ask that.

Answer 6

I'm sorry, but it seems as though you copied these questions out of a textbook. That is illegal, as most textbooks are copyrighted. We will not be giving any help. Please stay calm as law enforcement agencies investigate this matter.

Answer 7

is this just a quick way to get your homework done? I wish this was around when I was in school.

Answer 8

I know your feelings (I'm student too)..I'm sad for u because nobody accepted to do your homework..I want to help u but I don't know.. I didn't understand (^) it..

Answer 9

to long can concentrate on all questions at once

Answer 10

do your own homework... and i appreciate the two points