October 2018 1 14 Report

Zastosuj wzory skróconego mnożenia do obliczen :

a) (1-2xy) do potegi 2

b) 9m do potegi 2 - 100n do potegi 2

c) 144-49x do potegi 2

Podane wyrażenia zapisz w postaci różnicy kwadratów dwóch wyrażen :

a ) ( 4x-13)(4x+13)

b) ( 15m+8n)(15m-18n)

c) (20xy-3)(20xy+3)

d) ( -10+5x)(5x+10)


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