Answer:
none shown
Step-by-step explanation:
1/x^3 = x^(-3) has a negative exponent. It does not match the requirement that exponents be a non-negative integer. Therefore, any expression containing 1/x^3 will not be a polynomial.
-7
since its 1 point negative below 8 its -7
Xy=1/5......
because
2=4x+7