Bạn tham khảo!
Bài 9
a) 3 . $5^{2}$ - 16 : $2^{2}$ - $555^{o}$
= 3 . 25 - 16 : 4 - 1
= 75 - 4 - 1
= 71 - 1
= 70
b) 3 - {|26 - (5-1)²| : 10}
= 3 - {|26 - (4)²| : 10}
= 3 - {|26 - 16| : 10}
= 3 - {10 : 10}
= 3 - 1
= 2
c) ($8^{2012}$ - $8^{2010}$) : $8^{2010}$
= $8^{2012}$ : $8^{2010}$ - $8^{2010}$ : $8^{2010}$
= 8² - 1
= 63
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