document.write( "Question 70367: Factor completely:
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document.write( "x^2 - 3x - 18\r
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document.write( "Would the answer be:
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document.write( "(x-3)(x+6)
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document.write( "Thank you very much! \n" );
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Algebra.Com's Answer #50190 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! Factor completely: \n" ); document.write( "x^2 - 3x - 18 \n" ); document.write( "(x___)(x___) \n" ); document.write( "Fill the blanks with two integers that multiply to give you the last number, -18, but add together to give you the middle coefficient, -3. \n" ); document.write( "3*(-6)=-18 and 3+(-6)=-3 \n" ); document.write( " \n" ); document.write( "To check FOIL what you got and see if it gets you back to what you started with: \n" ); document.write( "(x+3)(x-6) \n" ); document.write( "x(x-6)+3(x-6) \n" ); document.write( "x(x)+x(-6)+3(x)+3(-6) \n" ); document.write( "x^2-6x+3x-18 \n" ); document.write( "x^2-3x-18 We're right!!! \n" ); document.write( "Happy Calculating!!! \n" ); document.write( " |