I need help Math hates me!!!?

Question

Which of the following expressions is a quadratic polynomial?

x^4 + 2x^3+ x - 1

x^3 + 3x + 2 ( I think it's this one)

x^2 + 2x + 1

None of the above

Classify this polynomial according to the number of terms:x2+3x -9

Monomial

Binomial

Trinomial

What is the degree of this term:5x2y3

2

3

5

1

What is the degree of this polynomial: 6x2y3-3xy2-2x

3

1

2

5

Simplify completely:

A. sqrt200x^2y=

B. sqrt72x^4y^5=

C. (4sqrt10x^4y^2)(2sqrt10x^2y^2=

D. sqrt2x^2*sqrt100x=

E. sqrt40/sqrt15=

F. sqrt90x^3y/sqrt10x=

G. sqrt25/sqrt7=

H. 2sqrt8+3sqrt18=

Answer 1

Good luck with that.