resuelve las siguientes ecuaciones:
1). x² - 9x + 18= 0
2). 8x² - 14x = -3
3). 9 (x²+x) = 10
4). 1/x + x - 4/3 = 2
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x² - 9x + 18= 0
x -6
x -3
-6x-3x = -9x
(x-6)(x-3) = 0
x-6 = 0 x-3 =0
x = 6 x = 3
CS = (6;3)
8x² - 14x = -3
8x² - 14x + 3 =0
4x -1
2x -3
-12x-2x = -14x
4x -1 = 0 2x -3 = 0
4x = 1 2x= 3
x = 1/4 x = 3/2
CS= (1/4; 3/2)
x -6
x -3
-6x-3x = -9x
(x-6)(x-3) = 0
x-6 = 0 x-3 =0
x = 6 x = 3
CS = (6;3)
8x² - 14x = -3
8x² - 14x + 3 =0
4x -1
2x -3
-12x-2x = -14x
4x -1 = 0 2x -3 = 0
4x = 1 2x= 3
x = 1/4 x = 3/2
CS= (1/4; 3/2)
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