Câu hỏi của Hiền Nguyễn

Question

Bell bạnhi vọng bạn giúp mình lần nữaĐề đây ạBài 2: tính A. (17.3-45)²B. (2mũ17 : 2mũ14). 2mũ4C. (64mũ4 : 512) : 32mũ2Đ. (81mũ7 : 27mũ4). 9mũ5Trông cậy vào bạn đó

Uchiha Madara · Accepted Answer

$A=\left(17.3-45\right)^2$$A=\left(51-45\right)^2$$A=6^2$$A=36$$B=\left(2^{17}:2^{14}\right).2^4$$B=2^3.2^4$$B=2^7$$C=\left(64^4:512\right):32^2$$C=\left(32768\right):32^2$$C=32^2:32^2$$C=1$$D=\left(81^7:27^4\right).9^5$$D=\left(27^{21}:27^4\right).9^5$$D=27^{17}.9^5$$D=9^{51}.9^5$$D=9^{56}$Câu trả lời: $A=\left(17.3-45\right)^2$$A=\left(51-45\right)^2$$A=6^2$$A=36$$B=\left(2^{17}:2^{14}\right).2^4$$B=2^3.2^4$$B=2^7$$C=\left(64^4:512\right):32^2$$C=\left(32768\right):32^2$$C=32^2:32^2$$C=1$$D=\left(81^7:27^4\right).9^5$$D=\left(27^{21}:27^4\right).9^5$$D=27^{17}.9^5$$D=9^{51}.9^5$$D=9^{56}$

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