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

(x-2) is factor of f(x)=x2-ax+4 then f2=0⇒22-2a+4=0⇒2a=8⇒a=4

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

(x-2) is factor of f(x)=x2-ax+4 then f2=0⇒22-2a+4=0⇒2a=8⇒a=4

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If $(x - 2)$ is a factor of $x^{2} - a x + 4$ , then the value of '𝑎' is

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Detailed Solution

$(x - 2)$ is factor of $f (x) =$ $x^{2} - a x + 4$ then

$f (2) = 0$

$\Rightarrow 2^{2} - 2 a + 4 = 0$

$\Rightarrow 2 a = 8$

$\Rightarrow a = 4$

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