November 2018 1 23 Report

Oblicz stosując wzory skróconego mnożenia.

A.(2x-y)(x-y)+(3x+y)^2=
B.(x-y)(x+y)-(2x-y)^2=
C.(3-a)^2-4(a+2)^2(a-1)=
D.(2p-3q)^2+(p+2q)^2-(p+3q)(p-3q)=
E.(m=2n)^2-3(m-2n)^2-5(m+2n)=

Gdyby ktoś mógł napisać jak to się oblicza! będę bardzo wdzięczna! :)


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