document.write( "Question 356290: please help me solve this\r
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document.write( "2x^8-10x^7+10x^6 \n" );
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Algebra.Com's Answer #254377 by CharlesG2(834)![]() ![]() ![]() You can put this solution on YOUR website! please help me solve this\r \n" ); document.write( "\n" ); document.write( "2x^8-10x^7+10x^6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "this is not an equation, it is a trinomial, a polynomial with 3 terms, if it were an equation it would be set to zero, and you would attempt to determine if there is a solution for x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "however can see if this can be factored\r \n" ); document.write( "\n" ); document.write( "2x^8 - 10x^7 + 10x^6 \n" ); document.write( "2x^6(x^2 - 5x + 5)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the x^2 - 5x + 5 can not easily be factored\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "would need to use the quadratic formula \n" ); document.write( " \n" ); document.write( "and plug in 1 for a, -5 for b, and 5 for c \n" ); document.write( "this would result in x1 = (1/2)(5 + sqrt(5)) and x2 = (1/2)(5 - sqrt(5))\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "testing these factors results in: \n" ); document.write( "2x^6(x - (1/2)(5 + sqrt(5)))(x - (1/2)(5 - sqrt(5))) \n" ); document.write( "2x^6(x^2 - (1/2)x(5 - sqrt(5)) - (1/2)x(5 + sqrt(5)) + (1/2)(1/2)(5 + sqrt(5)(5 - sqrt(5))) \n" ); document.write( "2x^6(x^2 - (5/2)x + (1/2)xsqrt(5) - (5/2)x - (1/2)xsqrt(5) + (1/4)(25 - 5)) \n" ); document.write( "2x^6(x^2 - 5x + (1/4)(20)) \n" ); document.write( "2x^6(x^2 - 5x + 5)\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |