Question

simplify (p+q+r)^2 + (p-q-r)^2​

Answer 1

Answer:

we all ready know that the formula of

(a+b+C) ^2 = a^2+b^2+c^2+2ab+2bc+2ca

Then the formula of

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

Then you put the above formula in the given question then you can got the answer.

HOPE YOU GET YOUR Answer

Answer 2

Answer:

use Identity (a+b+c)^2

Step-by-step explanation:

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