Zad.
Zapisz w jak najprostszej postaci:
a) (x+4)+(2x-6)
b) -(2y+3x)+(-4y+2x+1)
c)-(x-2xy)-(4x+xy)+(xy-x)
d) (x²+2x+1)-(x²-4x+3)
Prosze też o jakies obliczenia.
Potrzebne na jutro. Daje naj.
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a. 3x - 2
b. -2y - 3x - 4y + 2x + 1 = -6y -x +1
c. -x +2xy - 4x - xy + xy - x = 2xy - 6x
d. x^ + 2x + 1 - x^ +4x - 3 = 6x - 2
a)2x2-6x+8x-10=2x2+2x-10
b)-2y-3x-4y+2x+1=-6y-x+1
c)-x+2xy-4y-xy+xy-x=-2x+2xy-4y
d)x2+2x+1-x2+4x-3=6x-2