Trasponemos:
x² + 12 x = 45
Sumamos 36
x² + 12 x + 36 = 81
(x + 6)² = 9²
x + 6 = ± 9
Queda:
Saludos.
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Trasponemos:
x² + 12 x = 45
Sumamos 36
x² + 12 x + 36 = 81
(x + 6)² = 9²
x + 6 = ± 9
Queda:
x = 9 - 6 = 3
x' = - 9 - 6 = - 15
Saludos.