3X²-9=3(x-3)=3(x+√3)(x-√3)a³-2√2a²+2a=a(a²-2√2a+2)=a(a-√2)²祝你学业蒸蒸向上
解:3X²-9=(√3x+3)(√3x-3) a³-2√2a²+2a=a(a²-2√2+2)=a(a-√2)²