Question

Please help me! I will mark brainliest!

Answer 1

9514 1404 393

Answer:

  A, D

Step-by-step explanation:

Only expressions that are constant, or with variables to positive integer powers are polynomials.

A square root is a fractional power. (eliminates B)

-3 is not a positive power. (eliminates C)

The remaining choices are A and D.

  A.  x^4 +2y^2 +z -2^2 . . . . is a polynomial

  D.  -4x^8 . . . . is a polynomial

Answer 2

À is for sure and b too since they both have more than one variable.