Question

if(x-2) is a factor of x²-ax+4,then the value of a is

Answer 1

Answer:

4=a

Step-by-step explanation:

if x-2 is factor of x²-ax+4 then 2 must be equal to x

so put x=2 so

4-2a+4=0

so,8-2a=0

so,8=2a

so,4=a