Question

Ejercicio 127 resuelto del álgebra de Baldor numero 15 3/x2+y2 + 2/(x+y)2

Answer 1

3/(x² + y²) + 2/(x + y)²
(3(x + y)² + 2(x² + y²))/(x² + y²)(x + y)²
(3(x² + 2xy + y²) + 2x² + 2y²)/(x² + y²)(x² + 2xy + y²)
(3x² + 6xy + 3y² + 2x² + 2y²)/(x^4 + 2x³y + x²y² + y²x² + 2xy³ + y^4)
(5x² + 5y² + 6xy)/(x^4 + 2x³y + 2x²y² + 2xy³ + y^4)