Question

a²-49(b-c)² factorise​

Answer 1

a²-49(b-c)²

(a + 7b - 7c)(a +7c - 7b)

Answer 2

Answer:

${a}^{2} - 49 {(b - c)}^{2} \\ {a}^{2} - {(7(b - c))}^{2} \\ (a + 7(b - c))(a - 7(b - c)) \\ (a + 7b - 7c)(a - 7b + 7c)$