Question

HELP ME PLEASE !

1. What is the solution of n² – 49 = 0? (1 point)
–7
7
±7
no solution

2. What is the solution of x² + 64 = 0? (1 point)
–5
8
±8
no solution

3. What is the side length of a square with an area of 144x²? (1 point)
12
12x
±12x
no solution

5. What is the value of z so that –9 and 9 are both solutions of x² + z = 103? (1 point)
–22
3
22
184

Answer 1

1.+-7, 2.+-8, 3.12, 5.22