分解因式:1题:3x²-6x+3 2题a³-2a²+a
问题描述:
分解因式:1题:3x²-6x+3 2题a³-2a²+a
答
3x" - 6x + 3
= 3( x" - 2x + 1 )
= 3( x - 1 )"
a"' - 2a" + a
= a( a" - 2a + 1 )
= a( a - 1 )"