document.write( "Question 261097: HOW TO FACTOR 3X^2+2XY-8Y^2 \n" ); document.write( "
Algebra.Com's Answer #192349 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! HOW TO FACTOR \n" ); document.write( "3X^2+2XY-8Y^2 \n" ); document.write( "Think of two numbers whose product is 3*-8 = -24 \n" ); document.write( "and whose sum is 2 \n" ); document.write( "The numbers are +6 and -4 \n" ); document.write( "Use those numbers to rewrite the middle term: \n" ); document.write( "3x^2 +6xy - 4xy - 8y^2 \n" ); document.write( "--- \n" ); document.write( "Factor the 1st 2 and the last 2 terms seperately \n" ); document.write( "3x(x+y)-4y(x+y) \n" ); document.write( "--- \n" ); document.write( "Factor again to get the final answer: \n" ); document.write( "(x+y)(3x-4y) \n" ); document.write( "================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " \n" ); document.write( " |