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Solve the equation using the quadratic formula (if necessary, round your result to three significant digits and decide which number is smaller or larger x value).

2x^2 + x − 7 = 0

I used the quadratic formula and I got -2.13 as a smaller x-value and 1.6 as larger x-value.

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2 answers
  1. I got both answers wrong.

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  2. It asked for 3 significant digits, so your answers from the calculation are probably
    1.63745... and -2.13745...

    So for the accuracy asked for, try
    1.64 and -2.14

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