Question

3) resolva as equações do 2º grau sendo U=R
1) x2 + 5x + 6 = 0
VIII) 10x2 - 3x + 1 = 0
II) x2 - 7x + 12 = 0
IX) 5x2 + 6x + 3 = 0
III) x2 + 5x + 4 = 0
X) 7x2 + x + 2 = 0
IV) 2x2 + 3x + 1 = 0
XI) 2x2 + 5x - 3 = 0
V) x2 - 18x + 45 = 0
XII) 6x² + x - 1 = 0
VI) - - 30 = 0
XIII) 6x2 - 13x + 6 =0
VII) x2 - 6x + 9 =0
XIV) 5x - 11x + 2-0


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Answer 1

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