document.write( "Question 1052721: If 4 is added to 7 times a positive number, the result is twice the square of the number. Find the number. \n" ); document.write( "
Algebra.Com's Answer #668057 by ewatrrr(24785)\"\" \"About 
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7n + 4 = 2n^2
\n" ); document.write( "2n^2 - 7n - 4 = 0
\n" ); document.write( "(2n +1)(n - 4)= 0
\n" ); document.write( "n = 4 (a positive number)
\n" ); document.write( "And...
\n" ); document.write( "28 + 4 = 2*16 CHECKS!
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