1、原式=3x(y2+6y+1)原式a2-a-12-a2-1+2a=a-13.原式(x+1)+(3x-2)(x+1)-(3x-2)整式的乘法与因式分解a18b24c30原式=3x(y2+6y+1)整式的乘法与因式分解整式的乘法与因式分解-27 000 000期末复习学案(4)期末复习学案(4)原式4x2-1-(4x2-12x+9)2(x+3y)(x-3y)a18b24c303(x-y)(3a+b)原式a2(x-y)-(x-y)原式=3x(y2+6y+1)原式(x+1)+(3x-2)(x+1)-(3x-2)期末复习学案(期末复习学案(4 4)整式的乘法与因式分解整式的乘法与因式分解 m10考点过关考
2、点过关考点考点1.1.同底数幂的乘法同底数幂的乘法(a-b)4b12-(x+y)5a6考点考点2.2.幂的乘方幂的乘方x6nx6(a-b)2n8x6y12 考点考点3.3.积的乘方积的乘方32x25y5a18b24c30 -27 000 000a7考点考点4.4.同底数幂的除法同底数幂的除法x4a2b2 (2x+3y)2=(x-y)(a+1)(a-1)a18b24c30原式a2(x-y)-(x-y)x(x+1)(x-1).原式4x2-1-(4x2-12x+9)-3x2y(y+3)(y-3)-27 000 000原式(x+1)+(3x-2)(x+1)-(3x-2)4x2-1-4x2+12x-9原
3、式(x+1)+(3x-2)(x+1)-(3x-2)原式a2(x-y)-(x-y)原式4x2-1-(4x2-12x+9)3(x-y)(3a+b)原式=3x(y2+6y+1)原式=3x(y2+6y+1)原式4x2-1-(4x2-12x+9)原式4x2-1-(4x2-12x+9)1 考点考点5.5.零指数零指数3 2-12a2b5c 考点考点6.6.单项式乘以单项式单项式乘以单项式12x3y 2b3-b2-3b考点考点7.7.单项式乘以多项式单项式乘以多项式-2a2+6ab a2+a-6考点考点8.8.多项式乘以多项式多项式乘以多项式20 x2+9x-186a2-5ab+b2a3考点考点9.9.单项
4、式除以单项式单项式除以单项式-2x8abc-12y2+15x2 考点考点10.10.多项式除以单项式多项式除以单项式-8x2+4x-2原式4x2-1-(4x2-12x+9)3(x-y)(3a+b)=(x-y)(a+1)(a-1)-12y2+15x2原式=3x(y2+6y+1)=(x-y)(a+1)(a-1)2(x+3y)(x-3y)a18b24c30原式(x+1)+(3x-2)(x+1)-(3x-2)原式a2(x-y)-(x-y)原式a2(x-y)-(x-y)原式a2-a-12-a2-1+2a=a-13.4x2-1-4x2+12x-9原式4x2-1-(4x2-12x+9)-12y2+15x2原
5、式=3x(y2+6y+1)=(x-y)(a+1)(a-1)原式4x2-1-(4x2-12x+9)4a2-25c2考点考点11.11.乘法公式乘法公式4x2-y24a2-4a+1y(x-1)考点考点12.12.因式分解因式分解3(x-y)(3a+b)(2x+3)22(x-4y)22(x+3y)(x-3y)-3x2y(y+3)(y-3)-y(x-3y)2D 核心考题核心考题原式a2(x-y)-(x-y)-27 000 000 x(x+1)(x-1).-27 000 0002(x+3y)(x-3y)期末复习学案(4)-3x2y(y+3)(y-3)原式a2(x-y)-(x-y)原式a2(x-y)-(x
6、-y)原式(x+1)+(3x-2)(x+1)-(3x-2)=(x-y)(a+1)(a-1)原式4x2-1-(4x2-12x+9)原式a2-a-12-a2-1+2a=a-13.原式(x+1)+(3x-2)(x+1)-(3x-2)4x2-1-4x2+12x-9原式(x+1)+(3x-2)(x+1)-(3x-2)原式4x2-1-(4x2-12x+9)C Aab ab a3b2原式a2-ab+2ab-2b2-(2a2-6ab)=7ab-a2-2b2.-3x2y(y+3)(y-3)原式a2-a-12-a2-1+2a=a-13.原式(x+1)+(3x-2)(x+1)-(3x-2)3(x-y)(3a+b)=
7、(x-y)(a+1)(a-1)2(x+3y)(x-3y)原式4x2-1-(4x2-12x+9)=(x-y)(a+1)(a-1)原式(x+1)+(3x-2)(x+1)-(3x-2)原式a2(x-y)-(x-y)期末复习学案(4)3(x-y)(3a+b)原式a2(x-y)-(x-y)原式(x+1)+(3x-2)(x+1)-(3x-2)原式a2(x-y)-(x-y)=(x-y)(a2-1)原式a2(x-y)-(x-y)原式a2-a-12-a2-1+2a=a-13.原式4x2-1-(4x2-12x+9)4x2-1-4x2+12x-912x-10原式x(x2-1)x(x+1)(x-1).原式=3x(y2+6y+1)3x(y+1)2原式a2(x-y)-(x-y)=(x-y)(a2-1)=(x-y)(a+1)(a-1)原式(x+1)+(3x-2)(x+1)-(3x-2)=(4x-1)(3-2x).谢谢!