charles2487
charles2487
20-10-2020
Mathematics
contestada
y2 +4y+1
; y = -2 .
y2-1
Respuesta :
mail12siraj
mail12siraj
20-10-2020
Step-by-step explanation:
y2+4y+1=0. where, y=-2
(-2)2+4(-2)+1
-4-8+1=0
-12+1=0
-11=0
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