5(3a-2)²-10﹙2-3a﹚³提公因式

问题描述:

5(3a-2)²-10﹙2-3a﹚³提公因式

5(3a-2)²-10﹙2-3a﹚³
=5(3a-2)²+10(3a-2)³
=5(3a-2)²(1+6a-4)
=5(3a-2)²(6a-3)
=15(3a-2)²(2a-1)