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29 January, 03:25

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x - 4 = 0 for x?

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  1. 29 January, 04:03
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    5x^2+3x-4=0

    x^2+3x/5-4/5=0

    x^2+3x/5=4/5

    x^2+3x/5+9/100=89/100

    (x+3/10) ^2=89/100

    x+3/10=± (√89) / 10

    x=-3/10±√89/100

    x=-3± (√89/10)
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