document.write( "Question 1115992: For the function F(x)=x^2+30x+210\r
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Algebra.Com's Answer #730821 by Boreal(15235)\"\" \"About 
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f(10)=610, 100+30*10+210
\n" ); document.write( "f(15)=885, 225+450+210
\n" ); document.write( "The change is +275
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