Объяснение:
(a + b)² = a² + 2ab + b ²
(y + 9)² = y² + 18y + 81
(0.3 + m)² = 0.09 + 0.6m + m²
(5x + 7y)² = a² - 2ab + b²
(m - 0.03)² = m² - 0.06m + 0.009
(4 - c)² = 16 - 8c + c²
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Объяснение:
(a + b)² = a² + 2ab + b ²
(y + 9)² = y² + 18y + 81
(0.3 + m)² = 0.09 + 0.6m + m²
(5x + 7y)² = a² - 2ab + b²
(m - 0.03)² = m² - 0.06m + 0.009
(4 - c)² = 16 - 8c + c²