October 2018 1 9 Report

Zapisz wyrażenie w postaci kwadratu sumy lub kwadratu różnicy i oblicz jego wartość liczbową.

a)x^{2} -14x+49 dla x=47

b) 4x^{2}+16x+16 dla x=33

c) 25-30x+9x x^{2}dla x=-25

d) 81+72x + 16x x^{2} dla x=-2


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