document.write( "Question 321332: I need help with the following word problem:
\n" ); document.write( "The sum of a positive number and its square is 210. find the number.\r
\n" ); document.write( "\n" ); document.write( "thank you!
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Algebra.Com's Answer #230147 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
let the number be x
\n" ); document.write( "square of the number will be x^2
\n" ); document.write( "..
\n" ); document.write( "x^2+x=210
\n" ); document.write( "x^2+x-210=0
\n" ); document.write( "x^2+16x-15x-210=0
\n" ); document.write( "x(x+16)-15(x+16)=0
\n" ); document.write( "(x+16)(x-15)=0
\n" ); document.write( "x= -16 OR 15
\n" ); document.write( "x=15
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