Question

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Answer 1

Step-by-step explanation:

let, f(x)= 3x^3 +2x^2 -4x + k

now, x+1 is factor of f(x)

so, f(-1)=0

or, 3(-1)^3 +2(-1)^2-4(-1)+k = 0

or, -3+2+4+k = 0

or, k = -3