Respuesta:
Explicación:
1-x - x-1 / 1- x/x-1
=1-x - x-1 / x-1-x / x-1
=1-x - x-1 / -1/x-1
=1-x - (x-1)(x-1)/-1
=1-x+(x-1)²
=1-x+x²-2x+1
=x²-3x+2
=(x-2)(x-1)
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Respuesta:
Explicación:
1-x - x-1 / 1- x/x-1
=1-x - x-1 / x-1-x / x-1
=1-x - x-1 / -1/x-1
=1-x - (x-1)(x-1)/-1
=1-x+(x-1)²
=1-x+x²-2x+1
=x²-3x+2
=(x-2)(x-1)