October 2018 1 40 Report

1.Wykonaj dziłania

a) -3y+x²+2x²+5y+x²-y =

b)(6x-1) -(2-3x)+3(8-x+1)=

c)-(7-x²)-(y+2-x²)+2(2y+3)=

d)-(5+a²)-(a²+2a)-2(3a²-1+4a)=

2.Uporządkuj jednomiany

a)cztery piate x*x²*y*(-x)*3y*10x

b)(-a)*0,3*2b²*5a


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