document.write( "Question 64321This question is from textbook college algebra
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document.write( ": I really need help, I am an adult struggling with algebra. I have a very hard time starting out the problem. This specific problem I need to find the x intercept of
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document.write( "y = x^3-2x^2-8x\r
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document.write( "I think this is how I would start the problem\r
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document.write( "(x^2-4) (x+2)
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document.write( "and then foil it but I really am stuck.... Please help me thank you. \n" );
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Algebra.Com's Answer #44961 by 303795(602)![]() ![]() ![]() You can put this solution on YOUR website! The x intercept is where the value of y is 0 so you are trying to solve \n" ); document.write( " \n" ); document.write( "Factorise by taking out a common factor of x \n" ); document.write( " \n" ); document.write( "Factorise the trinomial by finding two numbers with a sum of -2 and a product of -8 \n" ); document.write( " \n" ); document.write( "To get an answer of 0 one of the numbers multiplied together must be 0. \n" ); document.write( "So either x = 0 or x-4=0 or x+2=0 \n" ); document.write( "So the y intercepts are 0,4 and -2 \n" ); document.write( " |