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Mathematics, 28.10.2019 04:31 jeffffffff

Select all of the following that are quadratic equations.

7x2 + 14x = 0
x3 - 3x2 + 1 = 0
5x - 7 = 0
x2 + 3x -5 = 0
x - 5 = 9x + 7
x2 - x = 3x + 7

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Select all of the following that are quadratic equations.

7x2 + 14x = 0
x3 - 3x2 +...
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