Question

Simplify ( p + 2q + r)² + ( p - 2q + r )² ​

Answer 1

Answer:

=p²+4q²+x²+2px+4qx+p²+4q²+x²+2px-4qx

=2p²+8q²+2x²+4px

Answer 2

Answer:

See the attached pics.

Step-by-step explanation:

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