Question

What are the solutions to m2 - 9 = 0?

O m = -9 and m = 0
m = -3 and m = 3
оооо
m = -3
O m = 9

Answer 1

b is correct

Explanation:

Answer 2

m = -3 and m = 3

Explanation:

`{m}^(2) - 9 = 0 \\ \\ {m}^(2) - {3}^(2) = 0 \\ \\ (m + 3)(m - 3) = 0 \\ \\ m + 3 = 0 \: \: or \: \: m - 3 = 0 \\ \\ m = - 3 \: \: or \: \: m = 3 \\ \\ m = - 3, \: \: 3`