Two mark example problems - V — task. Mathematics State Board, Class 10.

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Answer variants:

- \frac{1}{2}

\(1\)

\(-1 - \sqrt{3}\)

\frac{1}{2}

\(-1 + \sqrt{3}\)

\(-1\)

\(1 + \sqrt{3}\)

\(1 - \sqrt{3}\)

1. Solve \(2x^2 - x - 1 = 0\) by completing the square method.

Answer:

The roots are \(x =\)

and

2. Solve \(x^2 + 2x - 2 = 0\) by formula method.

Answer:

\(x =\)

and

Did you find an error?

6. Two mark example problems - V