Respuesta:
a) x² + 3x - 4 = 0
(x - 1) (x + 4) = 0
ans; x = 1, -4
b) 7x (x + 2) = 0
ans; x = 0, -2
c) 3x² = 12
x² = 12/3
x² = 4
x = ±√4
ans; x = ±2
Explicación paso a paso:
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Verified answer
Respuesta:
a) x² + 3x - 4 = 0
(x - 1) (x + 4) = 0
ans; x = 1, -4
b) 7x (x + 2) = 0
ans; x = 0, -2
c) 3x² = 12
x² = 12/3
x² = 4
x = ±√4
ans; x = ±2
Explicación paso a paso:
Sorry for long intro^_^
Just Copy It