Hi can somebody please help me with my homework i will give Brainliest, Thanks, and 40 Points. Please answer ALL questions. :)
Thanks :)

Answer:
1) C
2) A
3) C
4) D
Step-by-step explanation:
1) n^2 = 16
n = 4 or n = -4
2) r^2 + 4 = 13
r = 3 or r = -3
3) 4n^2 + 3 = 19
n = 2 or n = -2
4) 2( x - 3 )^2 = 32
x = -1 or x = 1