Tìm x, biết:
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Bài 3. Tìm x, biết: a) (2x - 1)² = 4;
b) (2x + 1)³ = 8;
c) (x - 1)⁵ = -32;
d) (3x - 2)² - \(\frac{4}{25}\) = 0;
e) (2x - 3)² = 25;
f) (5x + 1)² = \(\frac{36}{49}\);
Bài 4. Tìm x, biết: a) \(\left(\frac{x - 2}{9}\right)³ = \left(\frac{2}{3}\right)⁶\);
b) (8x - 1)²n+1 = 52n+1;
c) \(\left(-\frac{3}{4}\right)^{3x - 1} = \frac{256}{81}\);
d) \(\left(\frac{12}{25}\right)^{x} = \left(\frac{3}{5}\right)^{2} - \left(-\frac{3}{5}\right)^{4}\);
e) 172x² - 79·983 = \(\frac{1}{8}\);
f) 5x·(5³)² = 625;
g) (2x - 1)¹⁰ = (2x - 1)¹¹;
h) (x - 1)⁴ = (x - 1)⁸.
Bài 3. Tìm x, biết: a) (2x - 1)² = 4;
b) (2x + 1)³ = 8;
c) (x - 1)⁵ = -32;
d) (3x - 2)² - \(\frac{4}{25}\) = 0;
e) (2x - 3)² = 25;
f) (5x + 1)² = \(\frac{36}{49}\);
Bài 4. Tìm x, biết: a) \(\left(\frac{x - 2}{9}\right)³ = \left(\frac{2}{3}\right)⁶\);
b) (8x - 1)²n+1 = 52n+1;
c) \(\left(-\frac{3}{4}\right)^{3x - 1} = \frac{256}{81}\);
d) \(\left(\frac{12}{25}\right)^{x} = \left(\frac{3}{5}\right)^{2} - \left(-\frac{3}{5}\right)^{4}\);
e) 172x² - 79·983 = \(\frac{1}{8}\);
f) 5x·(5³)² = 625;
g) (2x - 1)¹⁰ = (2x - 1)¹¹;
h) (x - 1)⁴ = (x - 1)⁸.