Question

formula of (a-b+c)²​

Answer 1

Answer:

a²+b²+c²-2ab-2bc+2ac

Answer 2

Answer:

a^2+b^2+c^2-2ab-2bc+2ac

(a-b+c)(a-b+c)=a^2-ab+ac- ab+b^2-bc+ac- bc+c^2

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

hope it helps you