In factorization, we write the middle term of the quadratic equation either as a sum of two numbers or difference of two numbers such that the equation can be factorized.

⇒ x² – (2a + b)x + 2ab = 0

⇒ x² – 2ax – bx + 2ab = 0

⇒ x(x – 2a) – b(x – 2a) = 0

⇒ (x – b)(x – 2a) = 0

⇒ x = b, 2a