Algebra I Module 4, Topic B, Lesson 14

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Student Outcomes

  • Students derive the quadratic formula by completing the square for a general quadratic equation in standard form, ax2 + bx + c = 0, and use it to verify the solutions for equations from the previous lesson for which they have already factored or completed the square. 

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Common Core Learning Standards

CCLS State Standard
A.REI.4.a Use the method of completing the square to transform any quadratic equation in x into an equation...
A.REI.4.b Solve quadratic equations by inspection (e.g., for x2 = 49), taking square roots, completing the...

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