1. Factoring is used to solve quadratics of the form ax? +bx +c=0 when the roots are rational. Find the roots of the following quadratic functions by factoring: a. f(x) = x² - 5x –14 b. f(x) = x2 -64 c. f(x) = 6x² +7x-3

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter2: Equations And Inequalities
Section2.3: Quadratic Equations
Problem 82E
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Let's begin by taking a look at some second degree polynomials and the strategies used to solve them. Thes
equations have the form ax +bx+c =0, and when they are graphed the result is a parabola.
1. Factoring is used to solve quadratics of the form ax? +bx+c = 0 when the roots are rational. Find the
roots of the following quadratic functions by factoring:
a. f(x) = x² - 5x – 14
b. f(x) = x² -64
c. f(x) = 6x² +7x- 3
2. When roots are NOT rational, quadratic equations of the form x+bx+c =0, where b is even, can be
easily solved by completing the square. Find the roots of the following quadratic equations by completing
the sauare:
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Transcribed Image Text:Let's begin by taking a look at some second degree polynomials and the strategies used to solve them. Thes equations have the form ax +bx+c =0, and when they are graphed the result is a parabola. 1. Factoring is used to solve quadratics of the form ax? +bx+c = 0 when the roots are rational. Find the roots of the following quadratic functions by factoring: a. f(x) = x² - 5x – 14 b. f(x) = x² -64 c. f(x) = 6x² +7x- 3 2. When roots are NOT rational, quadratic equations of the form x+bx+c =0, where b is even, can be easily solved by completing the square. Find the roots of the following quadratic equations by completing the sauare: Dashboard Calendar To Do Notifications Inbox
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