Question

If |[a+x a x], [a-x a x], [a-x a -x]|=0 then x is?
(a) 0
(b) a
(c) 3
(d) 2a​

Answer 1

Answer:

if |[a+x x a x],[a-x a x],[a-x a- x]| = 0 then x is 0