pleasee dibantuu pake caraa

1) 3p ( p - 5 ) + ( 2p + 4 )² - 5 ( 2p - 3 )
= 3p² - 15p + 4p² + 16p + 16 - 10p + 15
= 7p² - 9p + 31

2) ( 2y - 3 ) ( y + 4 )
= 2y² - 3y + 8y - 12
= 2y² + 5y - 12
a = 2 , b = 5 , c = - 12
a + b + c = 2 + 5 - 12 = - 5