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9 May, 08:45

How many solutions are there for 5x^2+7x-4=0? a) 0 b) 1 c) 2 d) 3

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  1. 9 May, 09:15
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    5 x² + 7 x - 4 = 0

    The discriminant is:

    D = b² - 4 a c = 7² - 4 · 5 · ( - 4) = 49 + 80 = 129

    D > 0;

    Answer: C) 2 solutions
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