Oblicz najprostszym sposobem :
a) -5 razy (-5)⁹ : (-5)⁸
b) (-3)⁷ : (-3)⁶ razy (-3)²
a) -5*(-5)⁹:(-5)⁸=(-5)¹⁰⁻⁸=(-5)²=25
b) (-3)⁷ : (-3)⁶ * (-3)²=(-3)⁷⁻⁶*(-3)²=(-3)¹⁺²=(-3)³=-27
pozdrawiam i życzę miłego roku szkolnego :)
a)
-5 x (-5)^9:(-5)^8 =(-5)^10:(-5)^8 =(-5)^2 =25
b)
(-3)^7:(-3)^6 x (-3)^2 =(-3)^1 x (-3)^2 =(-3)^3 = -27
(^ - do potęgi)
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a) -5*(-5)⁹:(-5)⁸=(-5)¹⁰⁻⁸=(-5)²=25
b) (-3)⁷ : (-3)⁶ * (-3)²=(-3)⁷⁻⁶*(-3)²=(-3)¹⁺²=(-3)³=-27
pozdrawiam i życzę miłego roku szkolnego :)
a)
-5 x (-5)^9:(-5)^8 =(-5)^10:(-5)^8 =(-5)^2 =25
b)
(-3)^7:(-3)^6 x (-3)^2 =(-3)^1 x (-3)^2 =(-3)^3 = -27
(^ - do potęgi)