Answer:
The correct answer is,
the number of terms in the expression 5x² - 3x + 2 is 3
Explanation:
The given expression is 5x² - 3x + 2
To find the terms in the expression
The given expression is 5x² - 3x + 2
terms
1) 5x² 
2) 3x 
3) 2
There are three terms in the given expression. 
Therefore the correct answer is 3