document.write( "Question 70646: Factor each polynomial by grouping the first two terms and the last two terms.
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document.write( "x^3- 4x^2 + 2x -8 \r
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document.write( "I am confussed an need some help. Thanks. \n" );
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Algebra.Com's Answer #50441 by venugopalramana(3286)![]() ![]() You can put this solution on YOUR website! Factor each polynomial by grouping the first two terms and the last two terms. \n" ); document.write( "F(X) = x^3- 4x^2 + 2x -8 \n" ); document.write( "WRITE ALL FACTORS OF -8... \n" ); document.write( "+ OR - 1,2,4,8 \n" ); document.write( "TRY THEM AS A FACTOR BY CHECKING F(...) \n" ); document.write( "SAY F(1),F(-1)..ETC \n" ); document.write( "F(4)=4^3-4*4^2+4*2-8=0..HENCE X=4 IS A ROOT...SO...X-4 IS FACTOR. \n" ); document.write( "NOW DIVIDE F(X) WITH X-4.WE GET \n" ); document.write( "4|1-4+2-8 \n" ); document.write( ".|0+4+0+8 \n" ); document.write( "---------------- \n" ); document.write( "..1+0+2+0=REMINDER \n" ); document.write( "X^+0X+2=X^2+2 IS THE QUOTIENT. \n" ); document.write( "NOW THIS HAS NO MORE REAL FACTORS SO WE LEAVE IT HERE AND SAY \n" ); document.write( "F(X)=(X-4)(X^2+2) \n" ); document.write( "OK\r \n" ); document.write( "\n" ); document.write( "I am confussed an need some help. Thanks. \n" ); document.write( " |