n class="n">b</span> <span class="o">+</span> <span class="n">discr</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span class="mi">2</span> <span class="o">*</span> <span class="n">a</span><span class="p">);</span>
    <span class="n">root2</span> <span class="o">=</span> <span class="p">(</span><span class="o">-</span><span class="n">b</span> <span class="o">-</span> <span class="n">discr</span><span class="p">)</span> <span class="o">/</span> <span class="p">(</span><span