Question

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14.If x+1 is a factor of x ^3+a , then write the value of a.​

Answer 1

Given :

X+1 is factor

therefore, X+1=0

X= (-1)

Now, substitute the value of X in the polynomial

X^3+a= (-1)^3+a=0

-1+a=0

a= 1

Answer 2

this is what u need hope it helps