tolong nomer 10???????

Bab Limit
Matematika SMA Kelas X

lim (√(2x² + 2x - 3) - √(2x² - 2x - 3))
x→∞
a = 2; b = 2; c = -3; p = 2; q = -2; r = -3.
karena a = p = 2, maka

(b - q) / (2√a)
= (2 - (-2)) / (2 √2)
= 4/(2√2)
= 2/√2
= (2/2) √2
= √2

jawabannya E