Which of the following are polynomials:
A) $y=15 x^{4}$
B) $y=\left(x^{2}+3\right)(x-15) e^{x}$
C) $y=1-15 t+\sqrt{3 t^{5}}$
D) $y=1-15 t+\sqrt{3} t^{5}$

Question

Quizplus · Accepted Answer

A polynomial is an expression consisting of variables and coefficients, involving only non-negative integer powers of the variables. A) is a polynomial because it is a single term with a non-negative integer exponent. D) is a polynomial because it is a sum of terms with non-negative integer exponents. B) is not a polynomial because it includes the exponential function $e^x$. C) is not a polynomial because it includes a square root of a variable term.

Which of the Following Are Polynomials: A) y=15x4y=15 x^{4}y=15x4 B) y=(x2+3)(x−15)exy=\left(x^{2}+3\right)(x-15) e^{x}y=(x2+3)(x−15)ex

Which of the Following Are Polynomials:
A) $y=15 x^{4}$ B) $y=\left(x^{2}+3\right)(x-15) e^{x}$