Question

If (x+1) is a factor of x^2-3a-7, then the value if a is

Answer 1

Answer:

I don't now the answer sorry

Answer 2

Answer:

a = 2

Step-by-step explanation:

x+1=0

x=-1

putting value in equation

we get,

(-1)^2-3a-7=0

1-3a-7=0

1-3a=7

3a=7-1

3a=6

a = 2