Question

find the value of a if X+6 is a factor of X cube plus 3 x square plus 4 x plus a
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Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

x+6=0

x=-6

x³+3x²+4x+a

(-6)³+3(-6)²+4(-6)+a

-216+3(36)-24+a

-216+108-24+a

-108-24+a

-132+a=0

a=132