October 2018 1 28 Report

PROSZĘ pomóżcie zad.1.

a)-(6x+4)=2+6x=

b)(4x do kwadratu + 5)-(5+2+4x-7)=

c)-(2xy+5xdo kwadratu y - 7xy do kwadratu)-(2xy-5xy do kwadratu - 7x do kwadratu y )=

zad.2.

Dane jest wyr. algebraiczne:(-3a+1/4b )razy 1/2

Oblicz wartość tego wyr. dla a =-1/3 i b =8


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