[tex]\displaystyle\bf\\1)\\\\4a^{3} ab-6a^{2} b^{3} b^{3} -5ab\cdot 3a+7a^{3}b\cdot 0,2b^{4} =\\\\=4a^{4} b-6a^{2} b^{6} -15a^{2} b+1,4a^{3} b^{5} \\\\2)\\\\11m^{2} \cdot2mn-9mn\cdot6mn^{3} +10mn=22m^{3} n-54m^{2} n^{4} +10mn[/tex]
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[tex]\displaystyle\bf\\1)\\\\4a^{3} ab-6a^{2} b^{3} b^{3} -5ab\cdot 3a+7a^{3}b\cdot 0,2b^{4} =\\\\=4a^{4} b-6a^{2} b^{6} -15a^{2} b+1,4a^{3} b^{5} \\\\2)\\\\11m^{2} \cdot2mn-9mn\cdot6mn^{3} +10mn=22m^{3} n-54m^{2} n^{4} +10mn[/tex]