Question

$x {}^{2} - 4x + k = 0 \\ find \: the \: value \: of \: k$
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Answer 1

Answer: that depends on what x is

Answer 2

Answer:

IF THE QUESTION DEMANDS FOR EQUAL ROOTS THEN

K =4 IS THE CORRECT ANSWER

Step-by-step explanation:

USE DISCRIMINANT IN THIS CASE YOU WILL GET IT AS BELOW

16-4(1)(K)=0

NOW EVALUATE IT

YOU WILL GET

K = 4

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