Question

Find the value of p(1)+p(-1) for the polynomial p(x)=x3-2x2-5x+3

Answer 1

Answer:

The value of p[1] and p[-1] is 0 and 12. There fore the p[1] is also known as the zero of the polynomial

Step-by-step explanation:

the value of p[x]=x³-2x²-5x+6

When the value of x is 1

p[1]=1³-2×1²-5×1+6

1-2-5+6

-6+6

0

When the value x is -1

p[-1]=-1³-2[-1]²-5×[-1]+6

-1+2+5+6

-1+13

12