4.Zapisz w postaci uproszczonej:
2a+(3a-7)=
(4-2x)-(7x-2)=
2(7x+5)-6(x-2)=
(3a+4)(a-5)=
(4y+3)(y-2)-2y(4-2y)=
2(3a-1)-(a+2)(a-2)=
Plissss na teraz