Kurangkanlah:b.2p² + 15p – 18 dari 11p² – 17p +24,

11p²-17p+24-(2p²+15p-18)
11p²-17p+24-2p²-15p+18
11p²-2p²-17p-15p+24+18
9p²-32p+42
Semoga membantu!!!