Question

the ruts of the function
m^6 + 3m - 7 = 0

Answer 1

Delta = b^2 - 4 ( a ) ( c )
= 2^2 - 4 ( 1 ) ( 3 )
= 4 - 12
= - 8
delta is negative so the function has no roots

Answer 2

yes, they did all the work for you, and they used the proper values

Answer 3

its not that it doesnt have any roots, it just has no real roots

Answer 4

the square root of -8 still has solutions, just complex solutions