January 2019 1 59 Report
Opuść nawiasy i zredukuj wyrazy podobne
a) (2x-3)(y+2) - (x-3y)=
b) (x-2)(y-3) - (x+3xy - 2y +1)=
c) ( x+5)(y-2) - (2x-1)(y-3)+ xy=
d) (2a-b)(a+2b) + (2x-3)(a-2b) =
e) 3a(x-1) - (4a -5)(2x -3) +5x(a-4)=
f) (3x-1)(2x+1) + (2y+2)(y-3) - x(x-1) + y(y+4)=
zad2 Rozwiąż równania
a)6x -7(11+2x) + 2 =-4(15-x)+3x
b)3(5x+3)=7(x+5) - 3(2-x)
c)2(x-1)+4(x-3)= -3(x-2)+9x
d)(x-9)(x-5)=x^2+56-14x
e)x^2-(x+3)(x+4)=x+20
f)(x-1)(x+1) - x(x+2)-1+2(2x-1)
g)4(x+2)^2=(2x-1)(2x+1) - 2(2x-1)
podziękowania dla tego kto mi to zrobi :D

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