Question

If x + 1 is a factor of x ^2 + a, the value of 'a' is ​

Answer 1

Answer:

x+ 1=0

x = -1

p(x) = x²+a

p(-1) = (-1)²+a

1+a = 0

a = -1

hope this helps you

Answer 2

Answer:

x+1=0

x= -1

so,

x^2+a=0

(-1)^2+a=0

1+a=0

a=-1