1.若x^2+3x-1=0，則x-3/3x^2-6x÷（x+2 - 5/x-2）=________. 2.若m/a^2-b^2 - 2ab-b^2/a^2-b^2 = a-b/a+b，則m=_______.

1.若x^2+3x-1=0，則x-3/3x^2-6x÷（x+2 - 5/x-2）=________. 2.若m/a^2-b^2 - 2ab-b^2/a^2-b^2 = a-b/a+b，則m=_______.

1,1/3
2，m=a^2+2b^2

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