@beatrizlavinia

beatrizlavinia

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Resolva graficamente os seguintes sistemasx+y=2x-y=4
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Y= xao quadrado +2x +3
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Me ajudem ;  x+y = 2x-y =4b)3x+2y= -82x -3y -1c ) 4x-2y =8      y= 2x -4 d)4x -2y =8    y= 2x -4e)x+2y =-4x -1 y =6     _     2   
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A) x²- 4x =0B)x² - 5x =0C)16x² - 36x = 0D)6x² - 54 =0E)15x² - 60x = 0F)25x² - 36 =0G)12x² - 20x =0H)7x² - 21 = 0I)2x² + 24 =0J)2x² + 24 =0K)9x ² - 1 =0L)6x² -8x =0
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