Factorise 28a2-63b2 Share with your friends Share 2 Shaan Goswami answered this use a2-b2 a2-b2=(a+b)(a-b) substitute terms now and solve 1 View Full Answer Aashna answered this 28a2 -63b2 =7(4a2-9b2) 7(4a-9b)(4a+9b) hope it helps!!!!! 0 Shaan Goswami answered this nono ! 4a²=(2a)² 9b²=(3b)² so, now use a²-b² a=2a b=3b 7(2a+3b)(2a-3b)=answer 0
