30个多项式乘以多项式的计算题(初一下册数学)

问题描述:

30个多项式乘以多项式的计算题(初一下册数学)

1(2a+b)(a-2b) 2(a+b)^2 3(x^2+xy+y^2)(x^2-xy+y^2)4(2x^4-3x^3+5x^2+x)(-x+1) 5(x+1)(x+2)(x+3) 6 (2x+3y) (3x-2y) 7(x+2)(x+3)-(x+6)(x-1) 8(3x2+2x+1)(2x2+3x-1) 9(3x+2y)(2x+3y)-(x-3y)(3x+4y)
10(3x-1)(4x+5)\x0911(-4x-y)(-5x+2y) \x0912(x+3)(x+4)-(x-1)(x-2)
\x0913(y-1)(y-2)(y-3) 14(x-4)(x-9) 15(xy-8a)(xy+2a).16(a2+2)(a4-2a2+4)+(a2-2)(a4+2a2+4) 17(2a-3b)(2a+3b) 18(a+b+c)×(d+e+f) 19(a+b)×(a-b) 20(a+b)×(a+b) 20道计算题,再想不到了!