Question

x3+3x2-7x-9 divided by x+1​

Answer 1

Answer:

-2 is the correct answer

Answer 2

Answer:

Step-by-step explanation:

x+1=0

x=-1

polynomial at x=-1

=x³+3x²-7x-9

=[-1]³+3[-1]²-7[-1]-9

=-1+3+7-9

=0

as remainder=0

-1 is zero of polynomial

x+1 is factor of polynomial

hope it helps

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