Question

Prosze o obliczenia:

2a-3b+4-5-a+2b-3a+6-=

3ab+5a-4ab+1=

-5x+4+2y-4y-3x-4+5y+6-y=

(2x-3y)+(3y-2x)=

(3xkwadratowe-5x+7)-(2xkwadratowe+3x-5)=

(-2x-3y)+(x-4y)+(-2x-3y)=

(2x-3y)-(-5x-3y)=

-(2x-3y+4)-(5x-6y+7)=

3a-1-2(3a-6)=

2y+4(-1-3y)=

x(3x-4)-9(xkwadr - 4x)=

3(a+b)-4(a-b)-5(2a-4b)=

2x(3a-2b)+3a(-2x+1) +4bx=

3xy (4x-5y-6)=

-2x(x-8y+7)=

Prosze nie pisac samych wyników

Z gory dzieki

Answer 1

1.-4x-2y+7x-5y+2=(rozumiem że miał to być +)3-7y+2=-4x+7x-2y-5y-7y+2+3+2=3x-14y+7

2. 2a-3b+4-5-a+2b-3a+6-=2a-a-3a-3b+2b+4-5+6=-2a-b+5

3. 3ab+5a-4ab+1=3ab-4ab+5a+1=-ab+5a+1

4. -5x+4+2y-4y-3x-4+5y+6-y=-5x-3x+2y-4y+5y-y+4-4+6=-8x2y+6

5. (2x-3y)+(3y-2x)=2x-3y+3y-2x=2x-2x-3y+3y=0

6. (3xkwadratowe-5x+7)-(2xkwadratowe+3x-5)=3x²-5x+7-2x²-3x+5=3x²-2x²-5x-3x+7+5=x²-8x+12

7. (-2x-3y)+(x-4y)+(-2x-3y)=-2x-3y+x-4y-2x-3y=-2x+x-2x-3y-4y-3y=-3x-10y

8. (2x-3y)-(-5x-3y)=2x-3y+5x+3y=2x+5x-3y+3y=7x

9. -(2x-3y+4)-(5x-6y+7)=-2x+3y-4-5x+6y-7=-2x-5x+3y+6y-4-7=-7x+9y-11

10. 3a-1-2(3a-6)=3a-1-6a+12=3a-6a-1+12=-3a+11

11. 2y+4(-1-3y)=2y-4-12y=2y-12y-4=-10y-4

12. x(3x-4)-9(xkwadr - 4x)=3x²-4x-9x²+36x=3x²-9x²-4x+36x=-6x²+32x

13. 3(a+b)-4(a-b)-5(2a-4b)=3a+3b-4a+4b-10a+20b=3a-4a-10a+3b+4b+20b=-11a+27b

14. 2x(3a-2b)+3a(-2x+1) +4bx=6ax-4bx-6ax+3a=6ax-6ax-4bx+3a=-4bx+3a

15. 3xy (4x-5y-6)=12x²y-15y²x-18xy

16. -2x(x-8y+7)=-2x²+16xy-14x