Question

.Find the value of a if x + 3 is a factor of x³+ 2x²+ 6x+a.​

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Answer

Given p(x)=x

3

+2x

2

+3x+6 and g(x)=x+2

Then g(x)=0 so x=−2 replace x by −2 we get

p(−2)=(−2)

3

+2(−2)

2

+3(−2)+6

p(−2)=−8+8−6+6

p(−2)=0

So remainder is zero then x+2 is factor of x

3

+2x

2

+3x+6