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(2a + 5)(2a + 5)
4a² + 10a + 10a + 25
4a² + 20a + 25
2. (3x - 5)³
(3x - 5)(3x - 5)(3x - 5)
(9x² - 15x - 15x + 25)(3x - 5)
(9x² - 30x + 25)(x - 5)
9x³ - 45x² - 30x² + 150x + 25x - 125
9x³ - 75x² + 175x - 125
3. (4x3y⁴)²
(4x3y⁴)(4x3y⁴)
16x²9y⁸