Advanced MathEasy–MediumNumber of terms in an expanded product
Advanced Math practice question
When x(x + 1)(x + 2) is expanded and like terms are combined, how many terms does the resulting polynomial have?
Answer: 3
x(x + 1)(x + 2) = x(x² + 3x + 2) = x³ + 3x² + 2x: three terms.
Common wrong answers
- If you answered 2
- 2 misses the x² term.
- If you answered 4
- 4 counts a constant term, but there is none since every term has a factor of x.
- If you answered 6
- 6 counts the terms before combining.
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