Toán Lớp 8: Tính 1+3^8-2^8 + 4^5 + 6^3 -3^5-2^3
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Toán Lớp 8: Tính 1+3^8-2^8 + 4^5 + 6^3 -3^5-2^3
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Giải đáp:
$1+3^8-2^8+4^5+6^3-3^5-2^3$
$= 1+6561-256+1024+216-243-8$
$= (1024+216)+[(-243)+(-8)+1]+(6561-256)$
$= 1240+(-250)+6305$
$= 7295$
1 + 3^8 – 2^8 + 4^5 + 6^3 – 3^5 – 2^3
= 1 + 6561 – 256 + 1024 + 216 – 243 – 8
= (1024 + 216) + (6561 – 256 ) +(1 – 243 – 8)
= 1240 + 6305 – 250
= 7295