zadanie 7 ze strony 90 pilne daje naj!!
matematyka z plusem klasa2 gimnazjum
a) 30a^{2}b/5 * 2b - (3a + a * 2ab^{2}) = 12a^{2}b^{2} - (3a + 2a^{2}b^{2}) = 12a^{2}b^{2} - 3a - 2^{2}b^{2} = 10^{2}b^{2} - 3a
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a) 30a^{2}b/5 * 2b - (3a + a * 2ab^{2}) = 12a^{2}b^{2} - (3a + 2a^{2}b^{2}) = 12a^{2}b^
{2} - 3a - 2^{2}b^{2} = 10^{2}b^{2} - 3a