Question

a^2-121(a-b)^2 factorize this algebraic expressions

Answer 1

Answer:

${a}^{2} - 121(a - b)^{2} \\ = {a}^{2} - \{11(a - b) \}^{2} \\ = \{a + 11(a - b) \} \{a - 11(a - b) \} \\ = \{a + 11a -11 b \} \{a - 11a + 11 b \} \\ = (12a -11 b) (11 b - 10a)$