3) y^2 - 1 = 24
add 1 to each side:
y^2 = 25
Take square root of each side: y = √25
y = 5 or -5
4) y^2 - 1 =48
Add 1 to each side:
y^2 = 49
Take square root of each side:
y = 7 or -7
Answer:
-5 and 5
-7 and 7
Step-by-step explanation:
y² - 1 = 24
y² = 25
y = ±5
y² - 1 = 48
y² = 49
y = ±7