document.write( "Question 41570: Factor completely.\r
\n" ); document.write( "\n" ); document.write( "x^2 - 13x + 36\r
\n" ); document.write( "\n" ); document.write( "I get (x - 9) (x-4) by looking at it - but to break it down I am not sure how to get to this answer.\r
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Algebra.Com's Answer #26843 by mszlmb(115)\"\" \"About 
You can put this solution on YOUR website!
x^2 - 13x + 36\r
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document.write( "what two numbers add up to -13 and multiply to 36?
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document.write( "We know they are both negative for producing a positive product and a negative sum.
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document.write( "36=18*2=9*4 aha! sum of 13!
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document.write( "so..
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document.write( "x2-9x-4x+36  factor like terms
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document.write( "x(x-9)-4(x-9)  put like terms together
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document.write( "(x-4)(x-9) ther ya go!
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document.write( "ax 4 questionz
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