Cho biểu thức
x 4 A
x 5
và
2
2 x 20 B
x...
Mathematics, 31.07.2021 09:30 black99girl
Cho biểu thức
x 4 A
x 5
và
2
2 x 20 B
x 4 x 16
với
x 4
và
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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