Question

$(p + q) {}^{2} + (p {}^{2} - q {}^{2} ) + (p + q) \: \: \: \: \: pleas$
Help me​

Answer 1

=(p + q)² + (p² - q²) + (p + q)

= (p + q)² + (p + q)(p - q) + (p + q)

= (p +q) ( (p + q) + (p - q) + 1 )

= (p + q) ( 2p + 1)

= 2p² + p + 2pq + q