[질문] 비상9-가 개넘플러스유형파워 중 유형편54~56페이지답좀요꼭요ㅜㅜ

유형편54P/1.(a+1)(a+2)/2.3/3.1/4.(1)(x+y+2)(x+y-3),(2)(x+2y+2)(x+2y-5)/5.2/6.-2(x+4y)(3x-2y)/7.3/8.1/9.2/10.(1)(a+b)(a-b-c),(2)(a-2b)(a+2b-1),(3)(x-2z