Question

: If ( x + 3 ) is factor of the polynomial kx^3 + x^2 - 22x - 21 ,then find the value of k. ​

Answer 1

Step-by-step explanation:

This is the answer

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Answer 2

Answer:

x=2

Step-by-step explanation:

x+3=0

x=-3

so substitute x with -3

kx(-3)³+(-3)²-22x-3-21=0

-27k+9+66-21=0

-27k+75-21=0

-27k+54=0

-27k=-54

k=-54/-27

k=2

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