Which expression is a polynomial?
a. 11/√x
b. √11x
c. x-√11
d. 11/x²

Polynomials have placeholders that have exponents that are positive and whole

A. that is 11x^(-1/2), double no
B. that is (11x)^(1/2), no
C. that is x^1-11^(1/2), good
D. that is 11x^(-2), nope

C is answer

Ais the correct answer

2.4+3.2t. you get the answer by adding the ones with variables and ones without