Question

5а2-10а8+15а4 внести спільний множник за дужки​

Answer 1

$\displaystyle\bf\\5a^{2} -10a^{8} +15a^{4} =5a^{2} -5a^{2} \cdot 2a^{6} +5a^{2} \cdot 3a^{2} =\\\\=5a^{2} \cdot(1-2a^{6} +3a^{2} )$