Question

What is the solution of n^2 - 49 = 0

Answer 1

So
`n^(2) - 49 = 0`
Add 49 from 0 and you get

`n ^(2) = 49`
Only
`7^(2)`= 49 so n = 7

Answer 2

n² - 49 = 0
+ 49 + 49
n² = 49
n = +7

The solution to the problem is {7, -7}.