Ask: there is a mathematical symbol *, so that the following formula holds: 2 * 4 = 8,5 * 3 = 13,3 * 5 = 11,9 * 7 = 25, then 7 * 3 =?
Because 2 * 4 = 8,5 * 3 = 13,3 * 5 = 11,9 * 7 = 15
So 7 * 3 = 7 + 3 + 7 = 17
So the conclusion is: a * b = a + B + a
RELATED INFORMATIONS
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