Question

" It x+3 is
( one of the factors c3 + 2x² -
a X-18Then a? .....​

Answer 1

Answer:

Now one of the zero of this cubic polynomial would be -3 bcoz'

x+3=0 ,so x=-3

Step by step explanation:

Now , substituting the value of x in the given equation we would get = c³+2×(-3)²-a×(-3)-18=0

so, that would be c³+3a=0....(1)

so, c³=-3a

now, find equation second as c³-3a= 6a .....(2)

so, 6a=-6a

therefore a=minus a ,

so a=0

I hope you might have got your answer