October 2018 1 20 Report

Oblicz:

1.(3+x)²=

2.(x-7)²=

3.(5-7x)²=

4.(8-2x)(8+2x)=

5.(8x+2y)²=

6.(7x-9y)²=

7.(10x-12y)(10x+12y)=

Proszę o obliczenia


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