Question

(a-b+c)²=
plz tell
exactly ​

Answer 1

$\huge\mathtt\red{Answer}$

(a+b+c)²

=(a+b+c)(a+b+c).

=a(a+b+c)+b(a+b+c)+

c(a+b+c).

=(a²+ab+ac)+(ab+b²+bc)+(ac+bc+c²).

=a²+b²+c²+2ab+2bc+2ac.

Answer 2

Answer:

(a+(-b)+c)²= a²+b²+c²-2ab-2bc+2ca