Question

22) Simplify:
(i) (a + b + c)2 + (a - b + c)2
(ii) (a + b + c)2 - (a - b + c)2​

Answer 1

Answer:

1). ( a+b+c)2 + (a-b+c)2

=2a+2b+2c+2a-2b+2c

=4a+4c

=4(a+c)

2). (a+b+c)2 - (a-b+c)2

= 2a+2b+2c-2a+2b-2c

=4b