DeterminantHard

Question

Let ᐃ = , then

Options

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

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