Question

Bardzo prosze pomóżcie:** to na dzisaj na 20 ;__; prosze was<33 daje naj i dzuiękuję zadanie.1

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

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

c) -3(-2a-4b-c)-6(a-2b-6c)=

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

zadanie.2

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

b) -3(2x-3y)+5((x+2y)-2(3y-5z)=

c) 5(b-2a)+3(a-36)-4(2a-4b)=

d) -7(2a+3b)-9(a-2b)-3(3a+4b)=

zadanie 3.

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

b) 2(7x+5)-6(x-2)=

c) -2x(8-x)-5(x^2+3x)=

d) 5(3-2x)-(4x+6)*3=

zadanie. 4

a) 2x(x-5)-3(x^2-2x)+(x-2)x=

b) a(a+b+c)-b(a-b+c)-c(a-b-c)=

c) x(x^2+2x+1)-(-4x^3+8x^3-6):2=

Answer 1

zad.1.

a)=6a-4b+c+15a-5b=+10c=21a-9b+11c

b)=7x+14y-21a+8x-12y-20x=-5x+2y-21a

c)=6a+12b+3c-6a+12b+36c=24b+39c

d)=-10x-10y+30z-x+7y+3z=-11x-3y+33z

zad.2.

a)=2a-6b-3a-3b-20a-15b=-21a-24b

b)=-6x+9y+5x+10y-6y+10z=-1x+13y+10z

c)=5b-10a+3a-108-8a+16b=21b-15a-100

d)=-14a-21b-9a+18b-9a-12b=-32a-15b

zad.3.

a)=6x-3+4-4x=2x+1

b)=14x+10-6x+12=8x+22

c)=-16x+2xx-5x^2-15x=-31x+2xx-5x^2   tutaj to sie podpytaj bo do konca nie wiem :D

d)=15-10x-12x+18=3-22x

zad.4.

a)=2x^2-10x-3x^2+6x+x^2-2x=-12x

b)=aa+ab+ac-ba+bb-bc-ca+cb+cc

c)=xx^2+3x+x+4x^3-8x^3+6:2