Polynomial and factoring help!

[JamieK]

I need to know how to figure this out, I have numerous ones to do but if I can figure out how to solve I can do more of them!

what is the sum of the polynomials

3a^2b+2a^2b^2 and -ab^2+a^2b^2?

And factoring question like:

which is a factor of x^2-5x-6

Thank You so much!

Jamie

 

[Deleted member 4993]

I need to know how to figure this out, I have numerous ones to do but if I can figure out how to solve I can do more of them!

what is the sum of the polynomials

3a^2b+2a^2b^2 and -ab^2+a^2b^2?

Collect terms with same variable. In the question above, only two terms have the same variable (a²b²) - so those get added up. Thus the answer willbe:

3a²b + 3a²b² - ab²

For a quick review, go to:

http://www.purplemath.com/modules/polyadd.htm

And factoring question like:

which is a factor of x^2-5x-6

For a quick review, go to:

http://www.purplemath.com/modules/simpfact.htm

and

http://www.purplemath.com/modules/factquad.htm

Thank You so much!

Jamie

.

 

[srmichael]

I need to know how to figure this out, I have numerous ones to do but if I can figure out how to solve I can do more of them!

what is the sum of the polynomials

3a^2b+2a^2b^2 and -ab^2+a^2b^2?

And factoring question like:

which is a factor of x^2-5x-6

Thank You so much!

Jamie

Did your teacher not show you how to do these or are you self teaching yourself this?

For the first one, combine like terms. I'll give you a freebie, then see if you can apply this same concept to the other problems you have:

\(\displaystyle (3a^2b+2a^2b^2)+(-ab^2+a^2b^2)\)

\(\displaystyle 3a^2b+2a^2b^2-ab^2+a^2b^2\)

\(\displaystyle 3a^2b+3a^2b^2-ab^2\)


For the second equation, you need to find two numbers whose product is -6, but whose sum is -5. Does that make sense? What are these two numbers?