document.write( "Question 446245: i need help on how to do these please, factor using special products??
\n" ); document.write( "1) 9x^2-12x+4
\n" ); document.write( "2) 16x^2+8xy+y^2
\n" ); document.write( "3) x^2(x^4-16)-25(x^4-16)
\n" ); document.write( "4) 4x^2+12xy+9y^2-25z^2
\n" ); document.write( "5) 15x^2-21xy+10xy-14y^2
\n" ); document.write( "6) 36x^2+24x+4
\n" ); document.write( "7) x(x^2+y^2)-5x(x^2+y^2) \n" ); document.write( "

Algebra.Com's Answer #307302 by Earlsdon(6294) $\"\"$ $\"About$

You can put this solution on YOUR website!
1) $\"9x%5E2-12x%2B4+=+%283x-2%29%283x-2%29\"$ = $\"%283x-2%29%5E2\"$
\n" ); document.write( "2) $\"16x%5E2%2B8xy%2By%5E2+=+%284x%2By%29%284x%2By%29\"$ = $\"%284x%2By%29%5E2\"$
\n" ); document.write( "3) $\"x%5E2red%28%28x%5E4-16%29%29-25red%28%28x%5E4-16%29%29\"$ Factor the $\"x%5E4-16\"$
\n" ); document.write( "3a) $\"+red%28%28x%5E4-16%29%29+%28x%5E2-25%29\"$ Now factor both the difference of squares.
\n" ); document.write( "3b) $\"red%28%28x%5E2%2B4%29%28x%5E2-4%29%29%28x%2B5%29%28x-5%29\"$ Factor the difference of squares again.
\n" ); document.write( "3c) $\"red%28%28x%5E2%2B4%29%29blue%28%28x%2B2%29%28x-2%29%29%28x%2B5%29%28x-5%29\"$
\n" ); document.write( "4) $\"red%28%284x%5E2%2B12xy%2B9y%5E2%29%29-25z%5E2\"$ Factor the red group.
\n" ); document.write( "4a) $\"red%28%282x%2B3y%29%5E2%29-25z%5E2\"$ Now factor the difference of squares.
\n" ); document.write( "4b $\"%28%282x%2B3y%29%2B5z%29%28%282x%2B3y%29-5z%29%29\"$
\n" ); document.write( "5) $\"15x%5E2red%28%28-21xy%2B10xy%29%29-14y%5E2\"$ Combine like-terms (in red).
\n" ); document.write( "5a) $\"15x%5E2-11xy-14y%5E2\"$ Factor.
\n" ); document.write( "5b) $\"%283x%2B2y%29%285x-7y%29\"$
\n" ); document.write( "6) $\"36x%5E2%2B24x%2B4+=+%286x%2B2%29%286x%2B2%29\"$ = $\"%286x%2B2%29%5E2\"$
\n" ); document.write( "7) $\"x%28x%5E2%2By%5E2%29-5x%28x%5E2%2By%5E2%29\"$ Factor the $\"x%5E2%2By%5E2\"$
\n" ); document.write( "7a) $\"x%5E2%2By%5E2%29%28x-5x%29\"$ Simplify.
\n" ); document.write( "7b) $\"%28x%5E2%2By%5E2%29%28-4x%29+=+-4x%28x%5E2%2By%5E2%29\"$ \n" ); document.write( "

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