Question

3 is a
zero of the polynomial
find a
x2+2x-a,then find a​

Answer 1

Answer:

a=15

Step-by-step explanation:

p(3)=0.

x 2 +2x−a=0

Put x=3, we get

(3) 2 +2(3)−a=0

>9+6−a=0

>15−a=0

>−a=−15

>a=15

Answer 2

A = 15

May it helps........