Question

please answer
factorise this
(a square minus b square) (c square minus d square) minus 4abcd
with full solution on paper!

Answer 1

(a square- b square)= (a+b)(a-b)
(c square- d square)= (c+d)(c-d)
[a(c-d)b(c-d)] [a(c+d)-b(c+d)]
ac-ad+bc-bd +ac+ad-bc-bd
2ac-2bd= -4 abcd.ans

I hope it's help you.

Answer 2

Answer:

-4abcd is the answer of ur question...