Question

(x-y) (x+y) = x2-y2​

Answer 1

Step-by-step explanation:

(x-y) (x+y) = x^2 - y^2

by formula

$(a - b)(a + b) = a ^{2} - b ^{2}$

OR

L.H.S. = (x-y) (x+y)

= x (x+y) -y (x+y)

= x^2 + xy - xy - y^2

= x^2 - y^2

= R.H.S.

hence proved .

Hope this helps.