Jammiesflair
Answered

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Find the positive value of K, if the root of a quadratic equation is
X² -(k+2)x+4=2

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Sagot :

kennnedi17
Answer:

in the picture

Explanation:
View image kennnedi17
sqdancefan

9514 1404 393

Answer:

  k = 1

Step-by-step explanation:

If k is a root, then substituting it for x will satisfy the equation.

  k² -(k +2)k +4 = 2

  k² -k² -2k +4 = 2

  -2k = -2 . . . . . . . . . subtract 4, simplify

  k = 1 . . . . . . . . divide by -2

The value of k that will make k a root of the equation is k = 1.

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