Question

3. If - 3 is a zero of the polynomial p(x) = ax3 – x 2 + x + 4, then find the value of a.

Answer 1

put -3in px and equate to zero and get the answer

Answer 2

Answer:

Step-by-step explanation:

p(x)=ax³+x²+x+4

substitute x=-3

0=a(-3)³+(-3)²-3+4

0=-27a+9-3+4

27a=10

a=10/27