Mathematics for IGCSE & O level - Equations (Section 3 - No. 44)
Which technique would most easily solve an equation such as x² - 100 = 0?
Completing the square
Using the quadratic formula
Factorization of the difference of squares
Rearranging to isolate x
Selitys
Factoring difference of squares: (x-10)(x+10) = 0