Question

(a+b)²=, (a-b)², (a+b+c)²=,

displacement formula​

Answer 1

Answer:

1. a²+b²+2ab

2. a²+b²-2ab

3. a²+b²+c²+2ab+2bc+2ca

Answer 2

Answer:

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

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

(a+b+c)^2

=a^2+b^2+c^2+2ab+2bc+2ca