Resolva as seguintes equaçoes:

a) (x + 1)² - x = 7 + x
b) (x - 2)² - x = 1
c) x² =  \frac{4}{5}x +  \frac{1}{5}
d)  \frac{ x^{2}}{4} - \frac{x}{3} + \frac{1}{9} = 0
e) x² - 3 =  \frac{x - 3}{6}
f)  \frac{ x^{2} - 5x}{6} +1 = \frac{2x+11}{3}
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