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HellemUliana
@HellemUliana
December 2019
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Resolva a Equação Fracionária do 2° grau:
(3x+1) ao quadrado + (x-2)(x+1)= -1
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exalunosp
( 3x + 1)² + ( x - 2) ( x + 1) = -1
[ (3x)² + 2 . 3x . 1 + 1² ] + ( x² + x - 2x - 2 ) = -1
9x² + 6x + 1 + x² - x - 2 = -1
10x² + 5x - 1 + 1 = 0
10x² + 5x = 0
2x² + x = 0
x ( 2x + 1) = 0
x = 0 ****
2x + 1 = 0
2x = -1
x = -1/2 ***
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[ (3x)² + 2 . 3x . 1 + 1² ] + ( x² + x - 2x - 2 ) = -1
9x² + 6x + 1 + x² - x - 2 = -1
10x² + 5x - 1 + 1 = 0
10x² + 5x = 0
2x² + x = 0
x ( 2x + 1) = 0
x = 0 ****
2x + 1 = 0
2x = -1
x = -1/2 ***