1. Revenue R from the sale of x units of a product is found by multiplying the...

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1. Revenue R from the sale of x units of a product is found by multiplying the price by the number of items sold.
(a) Factor the right side of R = 300x - x2.
(b) What is the expression for the price of the item?
2. The expression for the speed of blood through an artery of radius r at a distance x from the artery wall is given by r2 - (r - x)2. Factor and simplify this expression?
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