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(nota 7) Calculaţi: a) (−2)²(−2)ª; b) (−3)²(−3)³; c). (−7)³:(-7)³; d) (−7)6:(–7)³; e) [(−2)³]²; f) [(-1)]; g) [(-2)²(+3)2]2; h) [(-5)41 (-5)20]:(-5)59; i) [(-27)]:233 j) (-3)7-39: (-3)14; k) (-125): 25¹¹; 1) [95 · (−9)³ : (−9)6]¹4 : (-9)⁹. (nota 7)​