Calcule as operações com frações algébricas.
a)x+2/x-2 . x-2/x+7
b)1 + 1/x/x - 1/x
c)x + x/3/x - x/2
URGENTEEE
a)x+2/x-2 . x-2/x+7
b)1 + 1/x/x - 1/x
c)x + x/3/x - x/2
URGENTEEE
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a)(x+2).(x+7) = (x-2).(x-2)
x²+7x+2x+14 = x²-2x-2x+4
x²-x²+8x+4x = 4-14
12x = 10
x=10/12 ou 5/8