Chapter9: Quadratic Equations And Functions
Section9.2: Solve Quadratic Equations By Completing The Square
Problem 9.34TI: Solve by completing the square: (d7)(d+3)=56 .
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Suppose that the manufacturer of a gas clothes dryer has found that, when the unit price is p dollars, the revenue R (in dollars) is
(a) At what prices p is revenue zero? (b) For what range of prices will revenue exceed $800,000?
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