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rexolvati ecuatia in R 4x^2-9=0

Răspuns :

4x² - 9 = 0

(2x - 3)(2x + 3) = 0

2x - 3 = 0 => 2x = 3 => x = 3/2

2x + 3 = 0 => 2x = -3 => x = -3/2