September 2018 1 48 Report

1.uprość wyrażenie:

(5y+1)(1-5y)-(1+5y)²=

2.obl. wartosc wyrazenia:

(√5 +1)² - (√5-x)² + (x+√5 )(√5-x) dla x= √5 -1

3.obl.wartosc wyrazenia:

(x-y)(x+y) + (x+2y)(x-2y) dla x=√2, y=1-√3

4.rozwiaz rownanie:

4(½x-3)² - (2-x)² =0

5. rozwiaz nierownosc:

4(x-3)² < (1-2x)²


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