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March 25, 2017

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Compute the value of the discriminant and give the number of real solutions to the quadratic equation.

2x^2+5x-7=0

Discrimnant=

number of real solutions=

  • Algebra - ,

    The discriminant is b^2-4ac

    I won't do all the work for you, but figure that number out.
    -If its positive, theres two solutions
    -If its negative there are no solutions
    -If its zero theres one solution.

  • Algebra - ,

    7x^2-2x+8=0

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