Answer:
Option D is correct, i.e. two solutions.
Step-by-step explanation:
Given the equation is 6x² + 40 = -31x.
Rearranging the terms:- 6x² +31x +40 = 0.
Then a = 6, b = 31, c = 40.
Finding Discriminant as follows:-
D = b² -4ac
D = 31² -4*6*40
D = 961 - 960
D = 1
If we have positive value of D, then it has two real solutions.
Hence, option D is correct, i.e. two solutions.