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...Chapter quadratic equations functions and inequalities graphing calculator x exercises solve each equation by locating the intercepts on graph of a corresponding function round approximate an swers to two decimal places rational inthis in this section we involving polynomials use new technique based rules for multiplying real numbers solving with sign inequality polynomial is called that aquadratic form cannot be factored applications ax bx c where b are symbols may also used if can factor then solved which shows positive negative or zero example solution because left hand side write as says product both factors analyze signs make follows first consider possible values value number line put above ifx right shown fig made from informa tion preceding table close up here usey toset y nowmakeatable scroll through figure thetablenumericallysupports thesigngraphinfig now note axis when information whenx see set not included those next will procedure bit more efcient rewrite one examine suppo...