Question

plz help me....
if -1 is a zero of the polynomial
$p(x) = ax {}^{3} - x { }^{2} + x + 4$
find the value of a ​

Answer 1

Step-by-step explanation:

$x = - 1$

$p(x) = a {x}^{3} - {x}^{2} + x + 4$

p(-1)=a(-1)³-(-1)²+(-1)+4

-a-1-1+4

-a-2+4

-a+2=0

a=2 is the answer of this question