equação do 2 grau fórmula geral x2/4-×/3+1/9=0
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x² - x + 1 = 0
---- ---- ----
4 3 9
9x² - 12x + 4 = 0
------------------ -----
36 36
9x² - 12x + 4 = 0
a = 9; b = - 12; c = 4
Δ = b² - 4ac
Δ = (-12)² - 4.9.4
Δ = 144 - 36.4
Δ = 144 - 144
Δ = 0
x = - b +/- √Δ = -(-12) +/- √0
--------------- -------------------
2a 2.9
x = 12 (:6) = 2
-------- -----
18 (:6) 3
R.: x = 2/3
************************************
Obs.: mmc (4,3,9) = 36
4,3,9: 2
2,3,9: 2
1,3,9: 3
1,1,3: 3
----------------
1,1,1 = 2.2.3.3 = 4.9 = 36
---- ---- ----
4 3 9
9x² - 12x + 4 = 0
------------------ -----
36 36
9x² - 12x + 4 = 0
a = 9; b = - 12; c = 4
Δ = b² - 4ac
Δ = (-12)² - 4.9.4
Δ = 144 - 36.4
Δ = 144 - 144
Δ = 0
x = - b +/- √Δ = -(-12) +/- √0
--------------- -------------------
2a 2.9
x = 12 (:6) = 2
-------- -----
18 (:6) 3
R.: x = 2/3
************************************
Obs.: mmc (4,3,9) = 36
4,3,9: 2
2,3,9: 2
1,3,9: 3
1,1,3: 3
----------------
1,1,1 = 2.2.3.3 = 4.9 = 36
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