Question

Solve:
x2 + 6x + 8 = 0 a) x = -4, -2
b) x = 4
c) x = 4, 2
d) x = -2

Answer 1

Note the +8 this means signs will be alike.
Note the +6x this means the signs will be positive
looks like C.

Answer 2

b) only has one of the roots. discard b

Answer 3

a) and d) has wrong signs. Stick with C