(7x⁴ + 18y²)² = (7x⁴)² + 2 7x⁴ 18y² + (18y²)² = 49x⁸ + 252x⁴y² + 324y⁴
Формулы:
(a + b)² = a² + 2ab + b²
(aᵇ)ⁿ = aᵇⁿ
(7x⁴ + 18y²)² = (7x⁴)² + 2 7x⁴ 18y² + (18y²)² = 49x⁸ + 252x⁴y² + 324y⁴
Формулы:
(a + b)² = a² + 2ab + b²
(aᵇ)ⁿ = aᵇⁿ