September 2018 1 19 Report

1.Wykonaj mnożenie i zredukuj wyrazy podobne:

a) (2 \sqrt{a} - \sqrt{b}) (- \sqrt{b} + 2 \sqrt{a})

2.zapisz w postaci iloczynu:

a) \frac{121}{144}a^{2} + \frac{81}{49}b^{2} - \frac{33}{14}ab


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