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4(-2r+s)-10,5r= -8r+ 4s - 10,5r =-18,5r+4s
-3(3x-2y)+2(x-2y)= -9x+6y +2x-4y =-7x+2y
-5(2z-3y)-4(4z-2y)= -10z+15y -16z+8y = -26z+23y
2(2p-3q+7)-3(p-2q+4)= 4p -6q+14-3p+6q-12 = p+2
2(3x²-2y+5y²)-3(4y+5y²)+2x-3x= 6x²-4y+10y²-12y-15y²-x=6x²-5y²-16y
powinno byc dobrze ;D
4(-2r+s)-10,5r= -8r+4s-10,5r=-18,5r+4s
-3(3x-2y)+2(x-2y)=-9x+6y+2x-4y= -7x+2y
-5(2z-3y)-4(4z-2y)= -10z+15y-16z+8y= -26z+23y
2(2p-3q+7)-3(p-2q+4)=4p-6q+14-3p+6q-12=p+2
2(3x²-2y+5y²)-3(4y+5y²)+2x-3x=6x²-4y+10y²- 12y+15y²+ 2x-3x=
6x²+25y²-x-16