find k for x=1 (3x^2+kx+2)/(x+1)=3x+2

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1 Answer

 

find k for x=1 (3x^2+kx+2)/(x+1)=3x+2

multiply both sides by (x+1)

(3x^2+kx+2) = (3x+2)(x+1)

Expand

3x^2+kx+2 = 3x^2 +3x+2

Therefore k=3.

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