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2015-12-21 1:32 pm

你地會點prove which of the following is/are true? (a) If a < b and x < y, then (i) a + x < b +y (ii) a - x < b - y (iii) ax < by (iv) a/x < b/y?

2014-10-04 3:00 am

Please slove the questions.

2014-10-04 2:38 am

Factorize 〖41〗^2-41x+x^2-49

2014-10-02 10:13 pm

factorize〖3(x+1)〗^2-7(x+1)+2

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