Mathematics for IGCSE & O level - Algebraic Manipulation (Section 5 - No. 6)
What is the result when you factor the GCF from an expression like 5x² + 10x + 15?
5(x² + 10x + 15)
x(5x + 10 + 15)
5(x² + 2x + 3)
x² + 2x + 3
解释
The GCF of 5, 10, and 15 is 5, so the factored form is 5(x² + 2x + 3).