5 5 Completing the Square Day 2 SWBAT

5 -5 Completing the Square – Day 2 SWBAT -Solve quadratic equations by completing the square. -Write quadratic equations in vertex form. SWBAT: Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Holt Algebra 2 Holt Mc. Dougal

5 -5 Completing the Square If a quadratic expression of the form x 2 + bx cannot model a square, you can add a term to form a perfect square trinomial. This is called completing the square. SWBAT: Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Holt Mc. Dougal Algebra 2

5 -5 Completing the Square Complete the square for the expression. Write the resulting expression as a binomial squared. x 2 – 14 x + Find x 2 – 14 x + 49 (x – 7)2 . Add. Factor. SWBAT: Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Holt Mc. Dougal Algebra 2

5 -5 Completing the Square Complete the square for the expression. Write the resulting expression as a binomial squared. x 2 + 9 x + x 2 + 4 x + SWBAT: Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Holt Mc. Dougal Algebra 2

5 -5 Completing the Square Homework: Page 273 #24 -27 all SWBAT: Solve quadratic equations by completing the square. Write quadratic equations in vertex form. Holt Mc. Dougal Algebra 2