CREATE TABLE table_name_71 (voltage_center__v_ VARCHAR2, input_clock__mhz_ VARCHAR2, part_number VARCHAR2)

Which Voltage Center (V) has an Input Clock (MHz) of 25 x 3, and a Part Number of a80486dx4-75?
SELECT voltage_center__v_ FROM table_name_71 WHERE input_clock__mhz_ = "25 x 3" AND part_number = "a80486dx4-75"
SELECT "voltage_center__v_" FROM "table_name_71" WHERE "25 x 3" = "input_clock__mhz_" AND "a80486dx4-75" = "part_number"