pilne na dziś pomocy4.rozłuz wyrazenia na czynniki
4x² - 121y² = (2x)² - (11y)² = (2x - 11y)(2x + 11y)
1/4 - 25c² = (1/2)² - (5c)² = (1/2 - 5c)(1/2 + 5c)
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4x² - 121y² = (2x)² - (11y)² = (2x - 11y)(2x + 11y)
1/4 - 25c² = (1/2)² - (5c)² = (1/2 - 5c)(1/2 + 5c)