For all numbers s and t, the operation * is defined by S * T = (S - 1 – McqOptions

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1.	For all numbers s and t, the operation * is defined by S * T = (S - 1)(T + 1), if (-2)* x = -12 then x =
A.	2
B.	3
C.	5
D.	6
E.	11
Answer» C. 5

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