Review: 6.5c Mini-Quiz 1. Solve: 4x2 – 40 = –27x.

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Presentation transcript:

Review: 6.5c Mini-Quiz 1. Solve: 4x2 – 40 = –27x

Objective: Students will solve quadratic equations of the form ax2 + bx + c = 0 by factoring Perfect Square Trinomials.

Solving Quadratic Equations by Factoring Perfect Square Trinomials Chapter 6 – Factoring and Solving Equations Section 5d Solve equations of the form ax2 + bx +c = 0

Check to see if it is a perfect square trinomial. Solve (2x + 9) 2 = 0 Check to see if it is a perfect square trinomial. ? 2(9)(2x) = 36x 36x = 36x TRUE Solve: (2x + 9) 2 = 0 2x + 9 = 0 or 2x + 9 = 0 2x = –9 x = {–4.5} CHECK YOUR ANSWER

Solve: 4x2 + 12x + 9 = 0 (2x + 3) 2 = 0 2x + 3 = 0 or 2x + 3 = 0 2x = –3 Answer: x = {- 3 2 }

Homework 368/27-31 odd

Lesson Summary: Objective: Students will solve quadratic equations of the form ax2 + bx + c = 0 by factoring Perfect Square Trinomials.

Preview of the next Lesson: Objective: Students will solve quadratic equations by using multiple steps including expansion and FOIL.