If x + y = 18, then the value of x2−1+2xxx2−1+2xx = ? – McqOptions

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1.	If x + y = 18, then the value of x2−1+2xxx2−1+2xx = ?
A.	±8
B.	10, -6
C.	6, -10
D.	±4
Answer» B. 10, -6

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