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SuzanaCastro1818
@SuzanaCastro1818
December 2019
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1. Resolução de uma equação incompleta.
A) 2x²= 18=0
B) 2x²=162=0
C) x²–4=0
D) x²=100=0
E) 2x²–50=0
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rosanev
A) 2x² - 18=0
2x² = 18
x² = 18/2
x² = 9
x = +- 3
B) 2x² -162=0
2x² = 162
x² = 162/2
x² = 81
x = +- 9
C) x²–4=0
x² = 4
x = +-2
D) x² -100=0
x² = 100
x = +- 10
E) 2x²–50=0
2x² = 50
x² = 50/2
x² = 25
x = +- 5
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Lista de comentários
2x² = 18
x² = 18/2
x² = 9
x = +- 3
B) 2x² -162=0
2x² = 162
x² = 162/2
x² = 81
x = +- 9
C) x²–4=0
x² = 4
x = +-2
D) x² -100=0
x² = 100
x = +- 10
E) 2x²–50=0
2x² = 50
x² = 50/2
x² = 25
x = +- 5