Mathematics for IGCSE & O level - Algebraic Manipulation (Section 8 - No. 26)
Which of the following correctly describes the order of operations when factorizing a quadratic expression?
Factor out common factors, then identify factors of 'c'.
Identify factors of 'c', then factor out common factors.
Always look for the difference of two squares first.
Use the quadratic formula directly.
Giải thích
Always look for common factors before attempting to factor the quadratic. This simplifies the process.