Задача Задача №113247
А
А
(3/4x + 1/5y)² = (3/4x + 1/5y) * (3/4x + 1/5y) = (9/16x² + 3/20xy + 3/20xy + 1/25y²) = 9/16x² + 6/20xy + 1/25y²
(3/4x + 1/5y)² = (3/4x + 1/5y) * (3/4x + 1/5y) = (9/16x² + 3/20xy + 3/20xy + 1/25y²) = 9/16x² + 6/20xy + 1/25y²
