若一個多項式加上-3x2y+2x2-3xy-4得2x2y+3xy2-x2+2xy,則這個多項式為______.
- 教育綜合
- 2022-11-10 17:43:18
初一數(shù)學(xué)化簡求值題!
1、-9(x-2)-y(x-5) (1)化簡整個式子。 (2)當(dāng)x=5時,求y的解。 2、5(9+a)×b-5(5+b)×a (1)化簡整個式子。 (2)當(dāng)a=5/7時,求式子的值。 3、62g+62(g+b)-b (1)化簡整個式子。 (2)當(dāng)g=5/7時,求b的解。 4、3(x+y)-5(4+x)+2y (1)化簡整個式子。 5、(x+y)(x-y) (1)化簡整個式子。 6、2ab+a×a-b (1)化簡整個式子。 7、5.6x+4(x+y)-y (1)化簡整個式子。 8、6.4(x+2.9)-y+2(x-y) (1)化簡整個式子。 9、(2.5+x)(5.2+y) (1)化簡整個式子。初一數(shù)學(xué)代數(shù)式求值題
3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. 14.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x-2初一數(shù)學(xué)化簡題
3.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. 14.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x初一上數(shù)學(xué)整式加減計算題及答案(要有過程)急~~~`
3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4b-1)=______. 13.-6x2-7x2+15x2-2x2=______. 14.2x-(x+3y)-(-x-y)-(x-y)=______. 16.2x+2y-[3x-2求80道初一下學(xué)期數(shù)學(xué)化簡題,40道化簡求值題
1.(2x立方-xyz)-2(x立方-y立方+xyz)+xyz-2y立方。其中x=1,y=2,z=-3 2.5abc-{2的平方b-[3abc-(4ab平方-a的平方b)]} 3.3ab-4ab+8ab-7ab+ab=______. 4.7x-(5x-5y)-y=______. 5.23a3bc2-15ab2c+8abc-24a3bc2-8abc=______. 6.-7x2+6x+13x2-4x-5x2=______. 7.2y+(-2y+5)-(3y+2)=______. 11.(2x2-3xy+4y2)+(x2+2xy-3y2)=______. 12.2a-(3a-2b+2)+(3a-4展開全文閱讀