document.write( "Question 245881: The product of 2 consecutive odd numbers is 63. What is the larger number? \n" ); document.write( "

Algebra.Com's Answer #179540 by unlockmath(1688) $\"\"$ $\"About$

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Hello,
\n" ); document.write( "The way to do this is first let x be an odd number and the next odd number would be x+2. Make sense? Now we can set up an equation like this:
\n" ); document.write( "x(x+2)=63 Distribute this so it looks like:
\n" ); document.write( "x^2+2x=63 Subtract 63 from both sides gives us:
\n" ); document.write( "x^2+2x-63 This can be factored into:
\n" ); document.write( "(x+9)(x-7)=0 Solve x will be:
\n" ); document.write( "x=-9
\n" ); document.write( "x=7
\n" ); document.write( "From the two answers only 7 makes sense, so the larger number would be 9.
\n" ); document.write( "The above is how to solve it using algebra.
\n" ); document.write( "There is a faster way to figure it out by just thinking what two numbers multiplied together gives us 63. Of course the answer is 7 and 9
\n" ); document.write( "RJ Toftness
\n" ); document.write( "Check out my book at www.math-unlock.com \n" ); document.write( "

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