Question

49asquare-225bsqaure. Factorise

Answer 1

(7a)²-(15b)²
(7a+15b)(7a-15b)



I hope this helps you

Answer 2

49 a^2-225 b^2
(7a)^2 - (15b)^2
(7a - 15b)(7a+15b)