Question

Simplify: (a-b)(a+b)-(b-c)(b+c).
(c-a)(c+a)

a ) 1

b ) 0

c ) 2

d ) 3 ​

Answer 1

Answer:

(a-b)(a+b)=a^2-b^2

(b-c)(b+c)= b^2-c^2

(c-a)(c+a)=c^2-a^2

=2