Question

if x+2 is a factor of x^2 +5x + a then what is the value of a​

Answer 1

Answer:

6

Step-by-step explanation:

(-2)^2+5(-2)+a=0

4+-10+a=0

a=10-4=6

Answer 2

Answer:

Step-by-step explanation:

x+2=0

x= -2

f(x)=x^2+5x+a=0

f(-2)=(-2)^2+5(-2)+a=0

         => 4-10+a  =0

         =>-6+a  =0

         => a=6