5 przykładów :dodawanie i odejmowanie sum algebraicznych ;/
Przykłady :
a) (-2a+b)+(3a-5b)+(4a+b)=
b) (4a-5b)+(-3a+2b-1)+(2a-4b+5)=
c) -6x-(-4x+2y+6)+
d) (2x+9y+1)-(5x-4y-5)=
e) -(3a+1)-(-2a+1)-(4a+b)=
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a) (-2a+b)+(3a-5b)+(4a+b)=-2a+b+3a-5b+4a+b=5a+3b
b) (4a-5b)+(-3a+2b-1)+(2a-4b+5)=4a-5b-3a+2b-1+2a-4b+5=3a-7b-1
c) -6x-(-4x+2y+6)|+ chyba nieskonczony ,wiec oblicze co widze
=-6x+4x-2x-6=-4x-6
d) (2x+9y+1)-(5x-4y-5)=2x+9y+1-5x+4y+5=-3x+13y+6
e) -(3a+1)-(-2a+1)-(4a+b)=-3a-1+2a-1-4a-b=-5a-b-2
a) -2a+b+3a-5b+4a+b= 5a - 3b
b) 4a - 5b -3a +2b -1 +2a-4b+5= 3a -7b + 4
c) -6x+ 4x-2y -6 = - 2x - 6
d) 2x + 9 y +1 -5x +4y +5= -3x +13 y + 6
e) -3a -1 +2a -1 -4a -b = -5a -b - 2