Question

29) x2 - 7x + 12 = 0 (R:3,4)
31) x2 + 5x + 4 = 0 (R: -4, -1)
32) 7x2 + x + 2 = 0 (vazio)
33) x2 - 18x + 45 = 0 (R: 3,15)
34) -x2 - x + 30 = 0 (R: -6,5)
35) x2 - 6x + 9 = 0 (R:3)
36) (x + 3)2 = 1 (R:-4,-2)
37) (x - 5)2 = 1 (R: 3,7)

Answer 1

Explicação:

29)1x+2x+4=0

+1x+2x+4=0

+3x+4=0

+7x=0

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