1. jika 6x^2+36x+m=6(x+n)^2 maka nilai m adalah 2. jika x^2-y^2=120 dan x+y=30 maka xy = jawab dua duanya yaa.

1) 6x^2 + 36x + m = 6(x + n)^2
6x^2 + 36x + m = 6(x^2 + 2nx + n^2)
6x^2 + 36x + m = 6x^2 + 12nx + 6n^2

Koefisien x
36 = 12n => n = 3

Konstanta
m = 6n^2 = 6(3)^2 = 6(9) = 54

2) x^2 - y^2 = 120
(x + y)(x - y) = 120
30 (x - y) = 120
x - y = 4

x + y = 30
x - y = 4
-------------- +
2x = 34 => x = 17

x + y = 30 => 17 + y = 30 => y = 13

xy = 17(13) = 221