Resposta :
Resposta:
x²-y²/(x+y). x² + 2xy+ y²/(x-y) = {[(x+y).(x-y)]/(x+y)}. [(x+y)²]/(x-y) = (x-y) [(x+y)]/(x-y) = (x+y)² = (1,25-0,75)² = (0,5)² = 0,25
Resposta:
x²-y²/(x+y). x² + 2xy+ y²/(x-y) = {[(x+y).(x-y)]/(x+y)}. [(x+y)²]/(x-y) = (x-y) [(x+y)]/(x-y) = (x+y)² = (1,25-0,75)² = (0,5)² = 0,25