October 2018 1 37 Report

1. Wyrażenie (x-3)(x+3) - (x+3)² można zapisać w postaci:

A. - 18

B. 6x

C. -6(x+3)

D. -6(x-3)

2. Oblicz wartość wyrażenia ( x ≠ <jest różne> y i x ≠ -y i x ≠ 0 i y ≠ 0\

( x / x - y - 2xy / x² - y² + x / x + y ) : (2x / x + y)


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