Question

P(x)=x²-1 ;x=+or-1 verify it

Answer 1

Answer:

verified

Step-by-step explanation:

case 1: if x=+1

then, p(1)=(1)^2-1

=1-1=0

case 2: if x=(-1)

p(-1)=(-1)^2-1

=1-1=0