Question

I'm stuck. what do i do next??

Answer 1

Here is your solution,
(-5)^2 - √25 - 4 x (-14)/2
25 - √ 25 + 56/2
25 - √81/2
(25 - 9)/2 = 16/2 = 8

or
25 + √25 +56/2
25 + √81/2
(25 + 9)/2 = 34/2 = 17

So m = 8,17