The question is simply and answer in standard form
3x2(that is x squared)-2x+1+x2(xsquared)+2x-9
so I made it
3xsquared+xsquared=4xsaqured
-2x+2x=0
the answer is: 4xsquared-(-8)=4xsquared+8
Then it asks the type of polynomial?
I thought it was binomial
Are these correct?
Thank you for your help
3x^2 - 2x + 1 + x^2 + 2x - 9
= 4x^2 - 8
don't understand how you got +8
( +1-9 = -8)
yes, it is a binomial , (there are two terms, "bi" means 2)
Yes, your simplification of the given expression is correct:
3x^2 - 2x + 1 + x^2 + 2x - 9
Combining like terms, you get:
4x^2 - 8
So the simplified expression is 4x^2 - 8.
Now, regarding the type of polynomial, a binomial is a polynomial that consists of two terms. In your case, the simplified expression has only one term (4x^2) and a constant (-8). Therefore, we can classify it as a monomial, not a binomial.
So, to summarize, the simplified expression is 4x^2 - 8, and it is a monomial.