Question

Expand and simplfy (x - y)(x + y)

Answer 1

Answer:

x*2+xy-yx-y*2

x*2-y*2

Answer 2

Answer:

(x² - y²)

Step-by-step explanation:

(x-y) (x+y) = x²+xy-xy+y²

Now, +xy and -xy will equal to 0