33 points
i really need on these both.

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

-5 and 5

-7 and 7

Step-by-step explanation:

y² - 1 = 24

y² = 25

y = ±5

y²  - 1 = 48

y² = 49

y = ±7

justin bieber ml.

the radius is 2 times the diameter.

step-by-step explanation: