Question

pleaseeeee answerrrrrrr fasttttttt pleaseeeee​

Answer 1

Answer:

1/4

Step-by-step explanation:

Answer 2

Answer is 1/4

Step-by-step explanation:

We know if (x-4) is a factor of polynomial

So it will be divisible by x^2-ax-15

x-4=0

x=0+4

x=4

Now put the value,

x^2-ax-15

(4)^2-a(4)-15=0

16-4a-15=0

4a-1=0

4a=0+1

4a=1

a=1/4

So the answer is 1/4