整式乘除与因式分解知识点整合

整式乘除与因式分解单元整合(1)8(x4)6 -2(x5 x3)3+(-3x6)3 x4 x2 +x3 x答案：(1)-21x24 +x2 (2)-1 (3)b4 2b2 +1 (4)4mn1.计算：(2)(a2)3 (-a3)2(-a4)3(3)(1-b)(-1-b)(b2 -1)2.计算(1)(x+y)(x-y)(x-y)2 +2y(x-y)4y (2x-y)答案 (1)-x-2y (2)-333.因式分解(1)x(y-x)+y(y-x)(x-y)2 (2)a5 a (3)(x2-4x)2 -48(4)x2(a-1)+y2(1-a)(5)-a+2a2-a3答案(1)2x(y-x)(2)a(a2+1)(a+1)(a-1)(3)3(x-2)2(x2-4x-4)(4)(a-1)(x+y)(x-y)(5)a(a-1)2 5.已知a+b+c=11，求2a2+2b2+2c2+4ab +4ac+4bc的值。6.化简：(1)(x+2y)2+(x+2y)2 (x+2y)-3x-6y(x+2y)(2)(3x+2y)2 +2(3x+2y)(x-2y)+(x-2y)2