a) (m + 2)² = m² + 2 * m * 2 + 2² = m² + 4m + 4
б) (7 + a²)² = 7² + 2 * 7 * a² + (a²)² = 49 + 14a² + a⁴
в) (4x² -3y)² = (4x²)² - 2 * 4x² * 3y + (3y)² = 16x⁴ - 24x²y + 9y²
a) (m + 2)² = m² + 2 * m * 2 + 2² = m² + 4m + 4
б) (7 + a²)² = 7² + 2 * 7 * a² + (a²)² = 49 + 14a² + a⁴
в) (4x² -3y)² = (4x²)² - 2 * 4x² * 3y + (3y)² = 16x⁴ - 24x²y + 9y²