Question

if (x+3) is one of the factors of x³+2x²+ax-1B. Then a=______​

Answer 1

x=3

x³+2x²+ax-1

3³+2(3)²+a(3)-1

27+18+3a-1

45-1+3a

44+3a=0

44=3a

a=44/3

a= 14.6

please mark my answer as brailiest