Question

(m square + n square) (m square - n square ) + (n square +p square ) (n square - p square ) + (p square + m square )
(p square -m square)

simplify the following​

Answer 1

(m square + n square) (m square - n square ) + (n square +p square ) (n square - p square ) + (p square + m square )

(p square -m square)= 0