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Mathematics, 31.07.2021 09:30 black99girl

Cho biểu thức x 4 A
x 5





2
2 x 20 B
x 4 x 16

 
 
với
x 4 

x 5  

a) Tính giá trị của A khi x = – 3
b) Rút gọn biểu thức B
c) Tìm các giá trị nguyên của x để biểu thức M = A. B nhận giá trị nguyên

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Cho biểu thức x 4 A
x 5





2
2 x 20 B
x...
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