Question

If (x+2)(x-2)=x2-k. what is value of k
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Answer 1

Answer:

K = 4

Step-by-step explanation:

x^2-4= x^2-k

-4= -k

k=4

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Answer 2

Answer:

ans is 4

Step-by-step explanation:

(x+2)(x-2)=x^2-4

so k=4