hasil himpunan selesaian 6p-9=p pangkat 2

[tex]6p - 9 = {p}^{2} \\ {p }^{2} - 6p + 9 \\ (p - 3)(p - 3) \\ p = 3[/tex]

6p-9=p^2
-p^2+6p-9=0
-p^2+3p+3p-9=0
p(-p+3)-3(-p+3)=0
(p-3)(-p+3)=0
p=3 -p=-3
p=3
Hp={3,3}