document.write( "Question 31123: (4x-5)<3>
\n" ); document.write( "the number in the <> are exponents \n" ); document.write( "

Algebra.Com's Answer #18002 by brianunlv(12) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"4x-5%29%5E3\"$ is a perfect cube
\n" ); document.write( "using the formula for perfect cubes:
\n" ); document.write( "perfect cube (2 forms): Ał ą 3A˛B + 3AB˛ ą Bł = (A ą B)ł
\n" ); document.write( "we get: $\"%284x%29%5E3+-+3%284x%29%5E2%285%29+%2B+3%284x%29%285%29%5E5+-+5%5E3\"$
\n" ); document.write( " $\"64x%5E3+-+3%2816x%5E2%29%285%29+%2B+3%284x%29%285%5E2%29+-+5%5E3\"$
\n" ); document.write( "= $\"64x%5E3+-+240x%5E2+%2B+300x+-+125\"$ \r
\n" ); document.write( "\n" ); document.write( "regards,
\n" ); document.write( "Brian bird \n" ); document.write( "

\n" );