February 2019 0 9 Report
C) :
(6a do kwadratu + 2a + 1 ) - (-3a do kwadratu - 2a + 5 )
d) :
5x + ( 2x -7 ) - 9x - (-3x + 8 )+ 20 - 8x
e) :
-9z - (4 - 3z ) - 8y - (-7z + 8y ) + (-2 -7)
f) :
7x - 3(5x + 2 ) - 6(7 + 2x )
g) :
-5(3y - 7 ) - 2(6 + 4y ) + 3y
h) : tu jak coś ułamki
4 ( x/4 + y/4 ) - 5 ( 3x/5 - 7y/5)


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