Question

if -1 is a zero of the polynomial p(x)=ax^2-x^2+x+4, find the value of a​

Answer 1

Answer:

-2

Step-by-step explanation:

p(-1)=a(-1)² -(-1)² -1+4

p(-1)=a-2+4

we know p(-1)=0

0=a+2

a= -2

Answer 2

Answer:

-2

Step-by-step explanation:

P(-1)=a(-1)²-(-1)²-1+4

P(-1)=a-2+4

We Know P(-1)=0

0=a+2

a=-2