Question

how many terms are in the expression $3x^4 + 7x^2 - x + 5$?
a. 3
b. 4
c. 5
d. 2

Explanation:

Step1: Identify expression terms

Terms are separated by +/-.
Terms: $3x^4$, $7x^2$, $-x$, $5$

Step2: Count the total terms

Count the listed terms: 4 total

Answer:

b. 4