Question

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

Answer 1

Answer:

if x - 2 is a factor... then.....

x-2=0

x=2

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

-2a=-8

a=4....

Step-by-step explanation:

hope this will help u.....

Answer 2

Answer:

put x-2=0

x=2

$(2) {}^{2} - a \times 2 + 4 = 0 \\ 4 - 2a + 4 = 0 \\ 8 = 2a \\ a = 4$