Question

15. Solve this question please
Give verified answer with step by step solution​

Answer 1

Answer:

hey

the identity used will be

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

Step-by-step explanation:

it is given in the following attachment

hope it helps

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Answer 2

Answer:

please see the above 3 pictures it is solve step by step

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