Question

verify the identity (a-b)square =a square -2ab+b square geometrically by taking

Answer 1

now rhs=(a-b)square
=(a-b) (a-b)
=a(a-b)-b(a-b)
=("a"square-ab)(-ab+"b" square)
now opening bracket ,we get.
"a"square-ab-ab+"b"square
="a"square-2ab+"b"square
hence proved...