rozłóż podane sumy algebraiczne na czynniki (7b-5a)(x+y)+(x-y)(7b-5a) x²(10a-1)-x(10a-1) x²(4-x)-x(x-4)+(4-x) (2x-1)y+(1-2x)-z(1-2x)

1) (7b-5a)(x+y)+(x-y)(7b-5a)= =(7b-5a)(x+y)( x-y) 2) x²(10a-1)-x(10a-1)= =(10a-1)*(x² -x) = = x*(10a-1)*(x -1) 3) x²(4-x)-x(x-4)+(4-x)= =x²(4-x)+x(4 -x)+(4-x)= = ( 4 -x)*(x² + x + 1) 4) (2x-1)y+(1-2x)-z(1-2x) = = -y(1 -2x)+(1-2x)-z(1-2x)= = (1-2x) *( 1-y -z)