ada yang tau caranya..?

3^(x² + x - 2) = 81^(x+2)
3^(x² + x -2) = 3^4(x+2)

x² + x - 2 = 4(x+2)
x² + x - 2 = 4x + 8
x² -3x - 10 = 0
(x-5) (x+2)
x1 = 5 ; x2 = -2

p > q
maka p = 5 ; q = -2

p - q
= 5 - (-2)
= 5 + 2
= 7