Platforms
Question 2 • Mathematics III A
Use the distributive property: (x − 7)(x + 3) = x² + 3x − 7x − 21. Combine the like terms, 3x − 7x = −4x, to get x² − 4x − 21. This matches choice B.
AI-written and checked against the verified answer.
Simplifying Polynomial Expressions
Warm-Up
Synthetic Division and the Remainder Theorem