October 2018 1 70 Report

Rozłóż na czynniki następujące trójmiany :

y = x² - x - 2

y= x² - x + 1

y = 2x² - 6x + 4

gdy Δ > 0

x1 = - b - √Δ / 2 a


x2 = - b + Δ / 2 a



gdy Δ = 0



x1, x2 = - b / 2 a


x0 = - b / 2a


Δ = b² - 4ac


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