①x³-x= x(x+1)(x-1). ②3x³-12xy²= 3x(x²-4y²)= 3x(x+2y)(x-2y). ③(a-2)x²-(a-2)y²= (a-2)(x²-y²)= (a-2)(x+y)(x-y)입니다.^__^★
[무물보AI] 답변 로딩중...