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2) (10a\a-2) - (10a\a+2)
3) (x\1+x) + (x\1-x)
4)(m\1-m^2) - (1\1+m)
2) (10a\a-2) - (10a\a+2)
3) (x\1+x) + (x\1-x)
4)(m\1-m^2) - (1\1+m)
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Answers & Comments
(10a/(a-2) - 10a/(a+2)
40a/a²-4
40a/(a-2)(a+2)
3)
(x\1+x) + (x\1-x)
2x/(1-x²)
-2x/(x-1)(x+1)
2x/(x+1)(-x+1)
4)
(m\1-m²) - (1\1+m)
(2m-1)/(1-m²)
(1/(m-1)-2m/(m-1))/(m+1)