a) (-3)^3 . 142 + (-3)^3 . 858 b) (-157)-216 . (-6)^2 – (-120) c) (-143)-5 . [ (-75)-21 ] 06/09/2021 Bởi Sarah a) (-3)^3 . 142 + (-3)^3 . 858 b) (-157)-216 . (-6)^2 – (-120) c) (-143)-5 . [ (-75)-21 ]
a) (-3)³ . 142 + (-3)³ . 858 = (-3)³ . (142 + 858) = -27 . 1000 = -27000 b) (-157) – 216 . (-6)² – (-120) = – 157 – 216 . 36 + 120 = – 157 – 7776 + 120 = – 7813 c) (-143) – 5 . [ (-75)-21 ] = – 143 – 5 . [ -75 – 21 ] = – 143 – 5(-96) = – 143 + 480 = 337 Bình luận
a) (-3)^3 . 142 + (-3)^3 . 858 = (-3)^3 . (142 + 858) = -27 . 1000 = -27000 b) (-157) – 216 . (-6)^2 – (-120) = – 157 – 216 . (-6)^2 + 120 = – 157 – 7776 + 120 = – 7813 c) (-143) – 5 . [ (-75)-21 ] = – 143 – 5 . [ -75 – 21 ] = – 143 – 5 . (-96) = – 143 – ( – 480) = 337 Bình luận
a) (-3)³ . 142 + (-3)³ . 858
= (-3)³ . (142 + 858)
= -27 . 1000
= -27000
b) (-157) – 216 . (-6)² – (-120)
= – 157 – 216 . 36 + 120
= – 157 – 7776 + 120
= – 7813
c) (-143) – 5 . [ (-75)-21 ]
= – 143 – 5 . [ -75 – 21 ]
= – 143 – 5(-96)
= – 143 + 480
= 337
a) (-3)^3 . 142 + (-3)^3 . 858
= (-3)^3 . (142 + 858)
= -27 . 1000
= -27000
b) (-157) – 216 . (-6)^2 – (-120)
= – 157 – 216 . (-6)^2 + 120
= – 157 – 7776 + 120
= – 7813
c) (-143) – 5 . [ (-75)-21 ]
= – 143 – 5 . [ -75 – 21 ]
= – 143 – 5 . (-96)
= – 143 – ( – 480)
= 337