document.write( "Question 405384: factor each polynomial, if possible. if the polynomial cannot be factored, write prime. 4-28r+49r squared \n" ); document.write( "

Algebra.Com's Answer #286323 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"49r%5E2+-28r+%2B+4\"$
\n" ); document.write( "I notice that if I say $\"s+=+7r\"$ , then I can say
\n" ); document.write( " $\"s%5E2+-+4s+%2B+4\"$
\n" ); document.write( "This is obviously factored to
\n" ); document.write( " $\"%28s+-+2%29%5E2\"$
\n" ); document.write( "Now I can put it in terms of $\"r\"$
\n" ); document.write( " $\"%287r+-+2%29%5E2\"$
\n" ); document.write( "There are 2 factors, and they are both $\"7r+-+2\"$
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