kak tolong dong bantuin soal limit

Limit tak hingga

lim(x->∞)  √(2x² + 5x + 8) - √(2x² + 2x - 1) =
a= 2, b = 5 , p = 2 , q= 2
krn a = p = 2
limit = (b- q) /(2√a)
limit = (5 - 2)/(2√2) = 3/(2√2) = ³/₄ √2