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3x² - 11x - 4 = 0
SOLUCION:
______________
-(-11) ± √ (11)² - 4(3)(-4)
x = -----------------------------------------
2(3)
__________
11 ± √ 121 + 48
x = ---------------------------------
6
______
11 ± √ 169
x = --------------------------
6
11 ± 13
x = ----------------
6
ENTONCES:
11 + 13 24
x₁ = ---------------- = ------------- = 4
6 6
11 - 13 - 2 1
x₂ = ---------------- = ---------- = - -------
6 6 3
RTA:
⇒ x = {- 1/3 , 4}