document.write( "Question 225238: factor completely:
\n" ); document.write( "3r^2-75 \n" ); document.write( "

Algebra.Com's Answer #168119 by chibisan(131) $\"\"$ $\"About$

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factor completely :
\n" ); document.write( "3r^2-75\r
\n" ); document.write( "\n" ); document.write( "3(r^2-25)\r
\n" ); document.write( "\n" ); document.write( "Note: (a-b)(a+b) = a^2 - b^2\r
\n" ); document.write( "\n" ); document.write( "3(r^2-5^2)
\n" ); document.write( "3(r+5)(r-5) (factorised) \n" ); document.write( "

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