document.write( "Question 259036: What is the answer to 'the square of a number is 70 more than 9 times the number. Find the number'. \n" ); document.write( "

Algebra.Com's Answer #190720 by drk(1908) $\"\"$ $\"About$

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Let X = the number.
\n" ); document.write( "We get from the given information
\n" ); document.write( "(i) $\"x%5E2+=+70+%2B+9x\"$
\n" ); document.write( "set = 0 and factor like this
\n" ); document.write( "(ii) $\"x%5E2+-+9x+-+70=+0\"$
\n" ); document.write( "factoring, we get
\n" ); document.write( " $\"%28x-14%29%28x%2B5%29=0\"$
\n" ); document.write( "solving each parenthesis, we get
\n" ); document.write( "x - 14 = 0
\n" ); document.write( "x = 14
\n" ); document.write( "and
\n" ); document.write( "x + 5 = 0
\n" ); document.write( "x = -5
\n" ); document.write( "we get 2 answers
\n" ); document.write( "x = 14 AND x= -5. \n" ); document.write( "

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