2^5.3^2+2^5.11-2^6.5-5 -2017-[(15-2017)+(-115)] 26/11/2021 Bởi Ayla 2^5.3^2+2^5.11-2^6.5-5 -2017-[(15-2017)+(-115)]
2^5 . 3² + 2^5 . 11 – 2^6 . 5 – 5 = 2^5 . (3² + 11) – 2^6 . 5 – 5 = 2^5 . (9 + 11) – 64 . 5 – 5 = 32 . 20 – 320 – 5 = 640 – 320 – 5 = 315 -2017 – [(15 – 2017) + (-115)] = -2017 – [-2002 – 115] = -2017 + 2117 = 100 Bình luận
2^5 . 3² + 2^5 . 11 – 2^6 . 5 – 5
= 2^5 . (3² + 11) – 2^6 . 5 – 5
= 2^5 . (9 + 11) – 64 . 5 – 5
= 32 . 20 – 320 – 5
= 640 – 320 – 5
= 315
-2017 – [(15 – 2017) + (-115)]
= -2017 – [-2002 – 115]
= -2017 + 2117
= 100