Documents EXAMPLE 1 Factor trinomials of the form x 2 + bx + c Factor the expression. a. x 2 – 9x + 20 b. x....

Slide 1 Slide 2 EXAMPLE 1 Factor trinomials of the form x 2 + bx + c Factor the expression. a. x 2 – 9x + 20 b. x 2 + 3x – 12 SOLUTION a. You want x 2 – 9x + 20 = (x…

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Documents Solve an equation with an extraneous solution EXAMPLE 5 Solve x + 1 = 7x + 15. x + 1 = 7x + 15 (x....

Slide 1 Solve an equation with an extraneous solution EXAMPLE 5  Solve x + 1 = 7x + 15.  x + 1 = 7x + 15 (x + 1) 2  = ( 7x + 15) 2 x 2 + 2x + 1 = 7x + 15 x 2 –…

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Splash Screen Lesson Menu Five-Minute Check (over Lesson 4–7) CCSS Then/Now New Vocabulary Example 1: Graph a Quadratic Inequality Example 2: Solve ax 2 + bx + c < 0…