document.write( "Question 681999: X^2-7x+12 \n" ); document.write( "

Algebra.Com's Answer #422942 by tsewaitung(11) $\"\"$ $\"About$

You can put this solution on YOUR website!
x^2+7x+12
\n" ); document.write( "=(x+3)(x+4) (solving the question by cross method)\r
\n" ); document.write( "\n" ); document.write( "checking the answer:
\n" ); document.write( "(x+3)(x+4)
\n" ); document.write( "=x(x+3)+4(x+3)
\n" ); document.write( "=x^2+3x+4x+12
\n" ); document.write( "=x^2+7x+12 \n" ); document.write( "

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