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b) 121a² + 286ab + 169b²
c) 36p² - 216p + 324
d) 1 - 4xy + 4x²y²
e) (3m - 10n)(3m + 10n)
f) (12 - 7x)(12 + 7x)
a) 16x² - 169
b) 225m² - 64n²
c) 400x²y² - 9
d) 25x² - 100
Mam nadzieję, że pomogłam :)