September 2018 1 23 Report

zad.1 Doprowadź do najprostszej postaci.

a) (2+a)^2 + (2- a)^2 - 2^2- a^2=...

b) (2x + 4)^2 - 4x^2 - 16=...

c) 9x^2 - 25 + (3x-5) (3x+5) - 2x=...

d) (7 - y)^2 + (y + 7)^2 + 1=...

zad.2

Rozwiąż równanie.

a) (x-1) (x-1) + x^2 - 1 = 2x^2 - 2

b) (x-4)^2 = (x-2) (x+2)

c) x^2 + (3x-3) (x+1) = 1 + (2x - 1)^2


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