jawablah pertanyaan berikut dengan benar yg di lingkari pake spidol yg di kerjakan

11. (2p²+15)² = (2p²+15)(2p²+15)
= 4p⁴+30p²+30p²+225
= 4p⁴+60p²+225
12. (9p²-10)²= (9p²-10)(9p²-10)
= 81p⁴-90p²-90p²+100
= 81p⁴-180p²+100
13. (-6p²-5q)² = (-6p²-5q)(-6p²-5q)
= 36p⁴+30p²q+30p²q+25q²
= 36p⁴+60p²q+25q²
14. (8p²+3p)² = (8p²+3p)(8p²+3p)
= 64p⁴ + 24p³ + 24p³ +9p²
= 64p⁴+48p³+9p²
15. (7p²-4p)² = (7p²-4p)(7p²-4p)
= 49p⁴ -28p³ - 28p³ +16p²
= 49p⁴ -56p³ +16p²