• (8cos(2π/3)^-1 + 5a^-1)² =
• (7cos(0)^-2 + 3b^-2)·(7cos(0)^-2 - 3b^-2) =
• (b^-2 + 8cos(π)^-2)·(b^-2 - 8cos(π)^-2) =
• (x^-1 + 7c²)·(5cos(2π/3) + 6x³) =
• (5a³ + 8c³)² =
• (8a³ + 7x^-1)·(8a³ - 7x^-1) =
• (6c^-1 - 8a)·(6cos(π)² + 3x^-1) =
• (6x^-1 - c^-1)·(6x^-1 + c^-1) =
• (3x² - 5x²)·(3x² + 5x²) =
• (3c³ - b²)·(3c³ + b²) =
• (3b³ - 5a³)·(3c^-1 + 6a^-2) =
• (7cos(π)^-2 - a)·(7cos(π)^-2 + a) =
• (5c - 3b)² =
• (6c^-1 + 5cos(0)³)² =
• (7b^-2 + 6b²)² =
• (7b^-2 + 6b³)·(3c^-2 - 7x³) =
• (6x^-2 + 6a^-2)·(7x³ - b^-2) =
• (5cos(π)^-1 + 8x^-2)·(5cos(π)^-1 - 8x^-2) =
• (6b^-1 + 8c)² =
• (5cos(π/2)² - 7a²)·(3x² + 6x³) =
• (5a + 7cos(π/2))² =
• (3a^-1 + 7c)·(3a^-1 - 7c) =
• (7b^-2 + 5x^-1)·(8c^-1 + 5cos(2π/3)) =
• (3x³ - 8cos(0)³)·(3x³ + 8cos(0)³) =
• (8b^-2 + 8x³)² =