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Narinha2016
@Narinha2016
January 2020
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2) Encontre a solução das equações abaixo.
a) 3x²-18x=0
b) 4x²+6x=0
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PauloBarros
a)
3x²- 18x = 0
3x.(x - 6) = 0
3x = 0
x = 0/3
x = 0
x - 6 = 0
x = 6
R.: x = 0 e x = 6
******************************
b)
4x² + 6x = 0
2x.(2x + 3) = 0
2x = 0
x = 0/2
x = 0
2x + 3 = 0
2x = - 3
x = - 3/2
R.: x = 0 e x = - 3/2
2 votes
Thanks 1
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3x²- 18x = 0
3x.(x - 6) = 0
3x = 0
x = 0/3
x = 0
x - 6 = 0
x = 6
R.: x = 0 e x = 6
******************************
b)
4x² + 6x = 0
2x.(2x + 3) = 0
2x = 0
x = 0/2
x = 0
2x + 3 = 0
2x = - 3
x = - 3/2
R.: x = 0 e x = - 3/2