Question

22) If – 1 is a zero of the polynomial p(x) = ax³
– x²
+ x + 4, the find the value of ‘a’.​

Answer 1

Answer:

p(x) =ax^3-x^2+x+4

zero of p(x) = -1

p(-1) = -a-1-1+4

0= -a+2 , since -1 is a zero of p(x)

-2=-a

a=2

answer, a=2