Jika X² - 3xy - 18y² = p×q maka p+q = Harus menggunakan cara

jawabannya adl 2x/12y

X^2 - 3xy - 18y^2 = pq

x^2 - 3xy - 18y^2 = p x q
(x-6y) (x+3y) = p x q
p = x -6y
q = x + 3y
p + q = (x-6y) + (x+3y)
p + q = x -6y + x + 3y
p+q = 2x - 3y