|M+4| =2bacali wrote:If |M+4| =2, what is the value of M?
(1) M<0
(2) M^2+8M+12=0
OA: E
M could be either -6 or -2
Statement I
M<0
We dont get a specific value, both the values could be possible.
Insufficient.
Statement II
M^2+8M+12=0
M^2+6M+2M+12 = 0
(m+6)(m+2)=0
m=-6 or -2
We dont get a specific value, both the values could be possible.
Insufficient.
Combining I & II
m=-6 or -2
m<0
Both the values can be possible.
Insufficient.
Hence E.
Hope this helps.
