Question

4x² + 8x + 3 = 0 método de completar quadrado
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Answer 1

Vamos là.

4x² + 8x + 3 = 0

x² + 2x + 3/4 = 0

x² + 2x = -3/4

(x² + 2x + 1) = 1 - 3/4

(x + 1)² = 1/4

x1 + 1 = 1/2

x1 = 1/2 - 1 = -1/2

x2 + 1 = -1/2

x2 = -1/2 - 1 = -3/2

S = (-1/2, -3/2)