Rozwiąż równanie
xdo potęgi2-3+4x=(x+2)do potęgi2-1
x² - 3 + 4x = (x+2)² - 1
x² - 3 + 4x = x² + 2² - 1
x² + 4x = x² + 4 + 2
4x = 4+2
4x = 6 / :4
x = 1.5
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x² - 3 + 4x = (x+2)² - 1
x² - 3 + 4x = x² + 2² - 1
x² + 4x = x² + 4 + 2
4x = 4+2
4x = 6 / :4
x = 1.5