Algebra 1 which expressions are polynomials? a. 35x^2 b. 4x+x√−1 c. 7x^7−x^−5 d. x/5+2

The main thing about a polynomial is it's the sum of terms, each a constant coefficient times whole number power (0, 1, 2, 3, ...) of the variable.

A. 35x² is a polynomial; the power 2 is a whole number.  There's only one term so not really the sum of terms, but one's enough.  

B.

That's a perfectly good polynomial but you might not have gotten to it in algebra I yet.  The square root of negative 1 is abbreviated i and when we add it to the set of real numbers we get complex numbers.    It has a complex coefficient 4+i but that's OK in a polynomial.

If you haven't gotten to complex numbers yet you might be expected to answer no to this one.  I don't know.

C.  

The negative exponent means this isn't a polynomial.

D. x/5 + 2

That's fine, just another way of writing

which is a perfectly ok polynomial.

A B D

i think its a and d

step-by-step explanation:

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation: