bai 1: thuc hien phep tinh a:\(25\times(\frac{5}{2})^{-2}\times(-2^{-3})^{-1}\)b; \([(\frac{4}{3})^{-3}\times(\frac{3}{4})^{-2}]\div(-\frac{2}{3})^{-3}\)c;\(\left(2^3+3^2\right)\times\left(2^3-3^2\right)\) d; Bai 2; tim xa; \(2x=\left(3,8\right)^3\div\left(-3.8\right)^2\) b;\(\left(x-2\right)^8=\left(x-2\right)^6\)AI TRA LOI DC THI MIK SE CHO 1 TICK ! OKHELP...
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bai 1: thuc hien phep tinh
a:\(25\times(\frac{5}{2})^{-2}\times(-2^{-3})^{-1}\)
b; \([(\frac{4}{3})^{-3}\times(\frac{3}{4})^{-2}]\div(-\frac{2}{3})^{-3}\)
c;\(\left(2^3+3^2\right)\times\left(2^3-3^2\right)\)
d; Bai 2; tim x
a; \(2x=\left(3,8\right)^3\div\left(-3.8\right)^2\)
b;\(\left(x-2\right)^8=\left(x-2\right)^6\)
AI TRA LOI DC THI MIK SE CHO 1 TICK ! OK
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