Answer:
option B and C are correct.
Step-by-step explanation:
The correct question is:
Which expressions are polynomials? Select EACH correct answer.
A: 3y2(x^1/4)
B: 9x2(y^5)
C: 4x2(y^5)
D: 8x2(3^y)
Solution:
According to this question option B and C are correct.
A polynomial is an expression consisting of variables and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables. a variable's exponents can only be 0,1,2,3,... etc. A polynomial can not have any exponent as a variable or a fraction