7

Set 5: Polynomial Functions (Beginner)

Explanation

Answer: C

PROBLEM

How many terms are in the polynomial: 3x to the power of 4 + 1x to the power of 3 + 1x to the power of 2 + 3x to the power of 1 + 1?

How many terms are in the polynomial: 3x to the power of 4 + 1x to the power of 3 + 1x to the power of 2 + 3x to the power of 1 + 1?

A.

10

B.

4

C.

5

✓ Correct
D.

7

Detailed Explanation

Choice C is the best answer. Count the terms separated by + or -: 5 terms.

Why others are wrong:
A: 10 is incorrect because it does not satisfy the equation.
B: 4 is incorrect because it does not satisfy the equation.
D: 7 is incorrect because it does not satisfy the equation.