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Put x + 3 = 0
So x = - 3
According to statement x + 3 divides the polynomial
Therefore (-3)^4 - (-3)^3 - 4(-3)^2 + 3 + k = 0
81 + 27 - 36 + 3 + k = 0
75 + k = 0
k = - 75
So x = - 3
According to statement x + 3 divides the polynomial
Therefore (-3)^4 - (-3)^3 - 4(-3)^2 + 3 + k = 0
81 + 27 - 36 + 3 + k = 0
75 + k = 0
k = - 75
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