February 2019 0 22 Report
Rozwiąż równania kwadratowe:
a) 1/16 x² - 1/9 = 0
b) 1 + 9x² + 6x = 0
c) 2x + 18x² = 0
d) (x-5)² = 0
e) (x-11)(x+1) = 0
f) x² = x² - 1
g) 2x² + 3 = -7x
h) x² - 1/2x - 1/2 = 0
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