Oblicz:
(2ab+a)-(ab+3a)=
(b + 3b do kwadratu + (b-3b do kwadratu)=
(a+2b-3)+(2a-2b-3)=
- (2+x)- (-4-3x)=
- (5+a)- (2a-6)=
- (3x+y)+ (6x+3y)=
- (ab+3b)+(3ab-2b)=
(ab+b-a) - (ab-a+b)=
(2ab+b-3)- (b-6+2ab)=
- (2a do kwadratu + a -1)+(3a do kwadratu+a+1)=
2a+(3a-2)-(5a-6)=
xy-(x+y)+x=
Dam naj. Dzięki.
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