Jawapan

2015-09-05T07:38:25+08:00
( 2p + q )( 2p + q )
=  4p^{2} + 2pq + 2pq +  q^{2}
=  4p^{2} + 4pq + q^{2}

trik
( a + b )( a + b)
 a^{2} +2ab + b^{2}


Semoga membantu^^
2015-09-05T16:18:04+08:00
(2p+q)(2p+q) = 4q^2 + 2pq + 2pq + q^2 = 4p^2 + 4pq + q^2