Pembahasan:
lim ((5x – 1) – √25x² + 5x – 7)
x→∞
= lim (√25x² – 10x + 1 – √25x² + 5x – 7)
x→∞
= b – p
√2a
= –10 – 5
2√25
= –15
2.5
= _ 3
2