The expression x4 2x2 + k will be a perfect square when the value of

1.	The expression x⁴ 2x² + k will be a perfect square when the value of k is
A.	2
B.	1
C.	1
D.	2
Answer» C. 1

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The expression x4 2x2 + k will be a perfect square when the value of k is

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The expression x⁴ 2x² + k will be a perfect square when the value of k is