Question

If x - ax + 20 is exactly divisible by x-4 then a = ?

Answer 1

Answer-No x-ax+20is not divisible by x-4

Answer 2

Answer:

$\red { Value \: of \: a } \green { = 6 }$

Step-by-step explanation:

$Let \: p(x) = x - ax + 20$

$It \: is \: given \: that , \\If \: p(x) \: is \: divisible \: by \: x-4 \: then \:the \\remainder \: is \: zero$

$\implies p(4) = 0$

$\implies 4 - 4a + 20 = 0$

$\implies -4a = -24$

$\implies a = \frac{-24}{-4} = 6$

Therefore.,

$\red { Value \: of \: a } \green { = 6 }$

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