9f772fba-8e86-48d2-9a4d-4eb27f74d87c.html

<p>In this lesson, you will continue to learn that some solutions to quadratic equations are irrational and can also include expressions that involve a rational number and an irrational number.</p>
<p>When you finish this lesson, you will be able to:</p>
<ul class="os-raise-noindent">
  <li> Use the radical and "plus-minus" symbols to represent solutions to quadratic equations. </li>
  <li> Explain why the plus-minus symbol is used when solving quadratic equations by finding square roots. </li>
</ul>
<p>Here are the <strong>activities</strong> that will help you reach those goals:</p>
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  <li> 9.5.0: Lesson Overview </li>
  <li> 9.5.1: Roots of Squares </li>
  <li> 9.5.2: Solutions Written as Square Roots </li>
  <ul>
    <li> 9.5.2: Self Check </li>
    <li> 9.5.2: Additional Resources </li>
  </ul>
  <li> 9.5.3: Finding Irrational Solutions by Completing the Square </li>
  <ul>
    <li> 9.5.3: Self Check </li>
    <li> 9.5.3: Additional Resources </li>
  </ul>
  <li> 9.5.4: Finding Exact Solutions </li>
</ul>
<p>After that, you'll <strong>practice and review</strong>.</p>
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  <li> 9.5.5: Practice </li>
  <li> 9.5.6: Lesson Summary </li>
</ul>