Toán Lớp 7: a, ( 5x – 1$)^{6}$ = 726
b, ( 2x + 1)$^{3}$ = 0,001
c, (-$\frac{8}{13}$ )$^{x}$ = $\frac{64}{169}$
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Toán Lớp 7: a, ( 5x – 1$)^{6}$ = 726
b, ( 2x + 1)$^{3}$ = 0,001
c, (-$\frac{8}{13}$ )$^{x}$ = $\frac{64}{169}$
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