document.write( "Question 629299: If the cost, C(x), for manufacturing x units of a certain product is given by C(x)= x^2 - 30x + 7000 find the number of units manufactured at a cost of $8000 \n" ); document.write( "

Algebra.Com's Answer #396160 by richwmiller(17219) $\"\"$ $\"About$

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x^2 - 30x + 7000=8000
\n" ); document.write( "x^2 - 30x -1000=0
\n" ); document.write( "(x-50) (x+20) = 0
\n" ); document.write( "x=50
\n" ); document.write( "x=-20
\n" ); document.write( "reject negative answers \n" ); document.write( "

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