It is stipulated that △ is a new operation symbol, and a △ B = A & # 178; - a × B + A-1, for example, 2 △ 3 = 2 & # 178; - 2x3 + 2-1 = 4-6 + 2-1 = - 1 Please try to find the value of (1) 4 △ 5 according to the above regulations (2) The value of (- 2) △ (- 3)

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