Rozwiąż ;
a) x + (5y - 4x) =
b) x - (5y - 4x) =
c) x · (5y- 4x) =
d) (5 - x) · (-2y) =
e) (3x - 2) · (x²+4) =
Wyznacz ze wzoru wskazaną wielkość ;
s = Vо + at² , a = ?
Cp = ms / ms + m rozpuszczalnika , ms = ?
jak najszybciej, daje naj :)
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a) x+5y-4x= -3x+5y
b) x-5y+4x = 5x-5y
c) 5xy -4xy
d) -10y +2xy
e) 3x^3 +12x -2x^2 - 8
a=
ms = (mr*Cp)/100%