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Subjects
Mathematics State Board
Class 10
Algebra
Zeroes, Roots of Quadratic Equation; Formation and Solving Quadratic Equations
6.
Two mark example problems - V
Exercise condition:
4
m.
Answer variants:
−
1
2
\(1\)
\(-1 - \sqrt{3}\)
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
.
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