Question

A plus B minus C ka whole square formula​

Answer 1

(a+b−c)2 is a2+b2+c2+2ab−2bc−2ca

Step-by-step explanation:

(a+b−c)2

=a^{2}+b^{2}+(-c)^{2}+2 a b+2 b(-c)+2(-c) a=a2+b2+(−c)2+2ab+2b(−c)+2(−c)a

=a^{2}+b^{2}+c^{2}+2 a b-2 b c-2 c a=a2+b2+c2+2ab−2bc−2ca

Hence, the final answer to the question (a+b-c)^{2} \text { is } a^{2}+b^{2}+c^{2}+2 a b-2 b c-2 c a(a+b−c)2 is a2+b2+c2+2ab−2bc−2ca

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