Question

determine if x+1 and x-2 are factors of polynomial p(x)=-3x³+3x​

Answer 1

Step-by-step explanation:

let. x+1andx-2 are factors

x+1=0

x=-1

x-2=0

x=2

x=-1. => p(x)=p(-1)=-3(-1)³+3(-1)

=3-3=0 is a factor

x=2. =>p(x)=p(2)=-3(2)³+3(2)

=-16+6=-10 is not a factot