Question

Reduzir para a forma normal na equação do 2 grau.

Answer 1

x / (x+1) = 8/3 + x / (1-x)
mmc (x+1, 3 e 1-x) = 3.(x+1).(1-x)

x.(3.(1-x)) = 8.(x+1).(1-x) + x.3(1+x)
x.(3-3x) = 8.(x-x²+1-x) + 3x+3x²
3x-3x² = 8.(-x²+1) + 3x+3x²
-3x² = -8x²+8+3x²
8x²-3x²-3x²-8=0
2x²-8 = 0 (forma normal)