Question

 If (x-3) is a factor of x^2 - ax -15, then a is equal to *​

Answer 1

Answer:

the value of a is equal to। the -2

Step-by-step explanation:

Mark me

as brainlist

Answer 2

Answer:

a = -2

Step-by-step explanation:

x-3=0 so, x=3

f(x) = $x^{2} -ax-15$

f(3) = $3^{2} -a(3)-15$

since x-3 is a factor of $x^{2} -ax-15$ , f(x) = 0 so,

0 = 9 - 3a - 15

3a = -6

a = $\frac{-6}{3}$

a = -2