1977 - Appoximetely a dozen armed HanafiMuslims take over three buildings in Washington, DC, killing one person and taking more than 130 hostages. The hostage situation ends two days later.
... of characteristic 2, the element 2a is zero and it is impossible to divide by it.)
The symbol
<math>\pm \sqrt {b^2-4ac}</math>
in the formula should be ...