Respuesta:
x²-3x-4=0
a. b. c
x = -(-3)±√(3)²-4(1)(-4)
2(1)
x= 3±√9+16
2
x= 3 ± √25
X= 3±5.
X1=3+5 =8 =4
2. 2
X2=3-5 =-2 =-1
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Respuesta:
x²-3x-4=0
a. b. c
x = -(-3)±√(3)²-4(1)(-4)
2(1)
x= 3±√9+16
2
x= 3 ± √25
2
X= 3±5.
2
X1=3+5 =8 =4
2. 2
X2=3-5 =-2 =-1
2. 2