DeterminantHard
Question
Let ᐃ = 
, then
, thenOptions
A.x + a is a factor of ᐃ
B.(x + a)2 is a factor of ᐃ
C.(x + a)3 is a factor of ᐃ
D.(x + a)4 is not a factor of ᐃ
Solution
ᐃ = 
= a
= a[(a2 + ax) +1 (xa + x2)]
= a(a + x)2
= a= a[(a2 + ax) +1 (xa + x2)]
= a(a + x)2
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