Question

If (x^(2)+x+1)/((x+2)^(3))=(1)/(x+2)-(3)/((x+2)^(2))+(k)/((x+2)^(3)) then k=​

Answer 1

Answer:

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Step-by-step explanation:

Answer 2

Answer:

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Step-by-step explanation:

If x is real and

then: (A)

(B)

(C)

(D) none