(x+2)(x+3) = x \cdot x + x \cdot 3 + 2 \cdot x + 2 \cdot 3
= x^2 + 3x + 2x + 6
= x^2 + 5x + 6
(x+2)(x+3)\boxed{x^2 + 5x + 6} .
Frequently asked questions (FAQs)
Question: If the linear function f(x) = x represents the number of hours studied by a student (x) and the corresponding score achieved on a test, what is the value of f(5)?
+
What is the limit of (x^2 + 3x) / (2x - 5) as x approaches 1?
+
What is the equation of the line passing through (-2, 4) and (3, 10)?