①x三次方+2x2+2x+1 ②20a三次方bc-9a²b²c-20ab三次方c ③b²+ab+ac+bc ④(x-2)²-x+2 ⑤9x四次方-35x²-4 ⑥x²+4x-xy-2y+4 ⑦7(x-1)²+4(x-1)(y+2)-2(y+2)² ⑧x六次方+8x三次方+9 ⑨4x²-6ax+18a² ⑩(x三次方-1)+(x-1)(6x+11) 11.a²(x-2a)²-a(x-2)² 12.2ax²-3x+2ax-3 13.4a²b²-(a²+b²-c²)² 14.x三次方+x²-2
问题描述:
①x三次方+2x2+2x+1 ②20a三次方bc-9a²b²c-20ab三次方c ③b²+ab+ac+bc ④(x-2)²-x+2 ⑤9x四次方-35x²-4 ⑥x²+4x-xy-2y+4 ⑦7(x-1)²+4(x-1)(y+2)-2(y+2)² ⑧x六次方+8x三次方+9 ⑨4x²-6ax+18a² ⑩(x三次方-1)+(x-1)(6x+11) 11.a²(x-2a)²-a(x-2)² 12.2ax²-3x+2ax-3 13.4a²b²-(a²+b²-c²)² 14.x三次方+x²-2
答
【我就慢慢来分解吧.当回好人,lz可不可以提高点悬赏~】 (x+1)(x^2+x+1)abc(4a-5b)(5a+4b)(a+b)(b+c)(x-3)(x-2)(x-2)(x+2)(9x^2+1)(x+2)(x-y+2)..此式不可分解题目是不是有问题..此式不可分解题目是不是有问...