exercício 1 ,2,3 porfavo
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Ola Gavriek
1)
x² = 5x
x² - 5x = 0
x*(x - 5) = 0
x1 = 0
x2 = 5
2)
4x² + 32x = 0
x² + 8x = 0
x(x + 8) = 0
x1 = 0
x2 = -8
3)
5x² + 4 = 2*(x + 2)
5x² + 4 = 2x + 4
5x² - 2x = 0
x*(5x - 2) = 0
x1 = 0
x2 = 2/5
.
1)
x² = 5x
x² - 5x = 0
x*(x - 5) = 0
x1 = 0
x2 = 5
2)
4x² + 32x = 0
x² + 8x = 0
x(x + 8) = 0
x1 = 0
x2 = -8
3)
5x² + 4 = 2*(x + 2)
5x² + 4 = 2x + 4
5x² - 2x = 0
x*(5x - 2) = 0
x1 = 0
x2 = 2/5
.
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