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23 January, 07:33

What is the discriminant of the equation x^2+11x-10=0

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  1. 23 January, 08:32
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    The discriminant is b^2-4ac

    ax^2+bx+c=0

    x^2+11x-10=0

    11^2-4 (1) (-10)

    1. Simplify 11^2 to 121

    121-4 (1) (-10)

    2. Simplify 4*1*-10 to - 40

    121 - (-40)

    3. Simplify brackets

    121+40

    4. Simplify

    161

    Your discriminant is 161
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