Mathematics for IGCSE & O level - Equations (Section 8 - No. 26)
What type of method is used to solve quadratic equations of the form ax² + bx + c = 0, where a ≠ 0?
Factorization
Completing the square
Quadratic formula
All of the above
Vysvetlenie
Factorization, completing the square, and the quadratic formula are all valid methods for solving such equations.