初一数学题 (只要答案) 求高手

问题描述:

初一数学题 (只要答案) 求高手
(1)n²(m-2)-n(2-m)(2)(x+2y)²-y² (3)a²-4a+4-b²(4)m²(p-q)-p+q(5)a(ab+bc+ac)-abc
(6)(x+1)²-9(x-1)²(7)4a²b²-(a²+b²-c²)²(8) m²-a²+4ab-4b²
因式分解 (1) 3p²-6pq(2) 2x²+8x+8(3) 3x-12x² (4)x³y-xy(5)3a³-6a²b+3ab²(6)a²(x-y)+16(y-x)
(7)(x²+y²)²-4x²y² (8) 2x²-x(9) 16x²-1 (10) 6xy²-9x²y-y³(11)4+12(x-y)+9(x-y)²
(12)2am²-8a (13)4x³+4x²y+xy²(14)x²y-2xy²+y³(15)(x-1)(x-3)+1

(1)n(m-2)(n+1) (2)(x+y)(x+3y) (3)(a+b-2)(a-b-2) (4)(p-q)(m+1)(m-1) (5)a²(b+c) (6)4(2x-1)(2-x) (7)(a+b+c)(a+b-c)(c+a-b)(c-a+b) (8)(m+a-2b)(m-a+2b)