Factorise 63asquare2 112bsquare2

Question

Factorise63a2 112b2

Answer 1

63a2 112b2= 7(9a2 16b2)

= 7[(3*a*)2 (4*b*)2]

= 7(3a+ 4b) (3a 4b) [*a*2*b*2= (*a**b*) (*a*+*b*)]