contoh soal dan jawaban dari operasi hitung aljabar

Soal:

1.(10x+5y+z)-(5x+2y+4z)=

2.(6y+7x+z)-(-6x+3y-2z)=

3.3x²+10x=

4.20x²-10x²=

5.(-8x-5z+10y)-(2x-7z+5y)=

6.5(x+y)=

7.(2x+2)(x+5)=

8.(5x+2y)(4x+2)=

9.(2x+5y+z)(-4x+y)=

10.(5y+x)(2x+y)=

11.9x:3x=

12.12xy:2x=

13.15x³:3x=

14.(12xy+5x):2x=

15.(18x²y+20xyz):2xy=

16.2(2x+y):2=

17.(10x-5x)+2x=

18.((20x+20y)-(15x+5y)):5=

19.((5x+2y)(2x+2y)):2=

20.(5x+2x)(2x-x)=

21.(10y-15y)(5y-12y)=

Jawaban:

        1.10x-5x+5y-2y+z-4z      

            =5x+3y-3z

        2. 7x+6x+6y-3y+z+2z

            =13x+3y+3z

        3. 3x²+10x

        4. 10x²

        5. -8x-2x+10y-5y-5z+7z

            =-10x+5y+2z

        6. 5x+5y

        7. 2x²+10x+2x+10

            =2x²+12x+10

        8. 20x²+10x+8xy+4y

        9. -8x²+2xy-20xy+5y²-4xz+yz

             =-8x²+5y²-18xy-4xz+yz

      10.2x²+5y²+11xy