roprowadź do najprostszej postaci
-(2-5x)+(1-4x)-x
(a-b)+(3a+2b)-(4a-3b)
-(3x+4y)-(2x-3y)+(-y+4x)
usun nawiasy i zredukuj wyrazy podobne
4a+1-{2a-{(3a-1)-(2-a)+4-3a]+5}-2
-[-(x+3)-(4-x)+2]-(-5+2x)-[-1-(-2x+2)+(x-3)]
proszę o dokładne przeliczenia
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1)...=-2+5x+1-4x-x=-1
2)...=a-b+3a+2b-4a+3b=4b
3)...=-3x-4y-2x+3y-y+4x=-x-2y
4)...=ax²+ax-a-x-2ax+3ax²-a+x+2a-ax²=
=3ax²-ax-2a
1)...=4a+1-{2a-[3a-1-2+a+4-3a]+5}-2 =
=4a+1-{2a-[a+1]+5}-2=4a+1-{2a-a-1+5}-2=
=4a+1-{a+4}-2=4a+1-a-4-2=3a-5
2)...=-[-x-3-4+x+2]+5-2x-[-1+2x-2+x-3]=
=-[-5]+5-2x-[3x-6]=5+5-2x-3x+6=16-5x
3)...=-[2x²-3xy-y²+x²-xy+2y²+4xy]+3x²-2y²=
=-[3x²+y²]+3x²-2y²=-3x²-y²+3x²-2y²=-3y²