(6x-7y)2 simplify Share with your friends Share 0 Rishabh Mittal answered this We know,a-b2=a2-2ab+b2So,6x-7y2=6x2-26x7y+7y2=36x2-84xy+49y2 ANS... -2 View Full Answer Alabh Manjul answered this [a- b ] 2 = a2 - 2ab + b2 a = 6x b = 7y = 6x2 -42xy + 49y2 -1