RESOLVER:
A) X a la 2 + 13X + 42 = 0
B) X a la 2 + 12X +32 = 0
A) X a la 2 + 13X + 42 = 0
B) X a la 2 + 12X +32 = 0
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Respuesta:
Explicación paso
x*(x+7)+6(x+7)=0
(x-7)*(x+6)=0
x+7=0
x+6=0
X1=-7
x2=-6