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1. 4x² – 9 = 0
2. 25x² – 9 = 0
3. 9x² – 1 = 0
1. 4x² – 9 = 0
2. 25x² – 9 = 0
3. 9x² – 1 = 0
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Respuesta:
1. 4x²= 9
x= \|9/4
x= 3/2
2. 25x²= 9
x= \| 9/25
x= 3/5
9x²= 1
x= \|1/9
x= 1/3