tolong ya besok di kumpul pleess

1.p²+50-36
=p²+14
2.x²+21x-72
=(x+24) (x-3)
3.y²-20y+36
=(y-18) (y-2)
4.m²+9mn-90n²
=(m+18)(m-5)
5.x²-14x+49
=(x-7)²

Semoga membantu ^-^