document.write( "Question 323158: One root of the equation 2x^3 – 5x^2 – 8x + d = 0 is the negative of another. Compute d.\r
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document.write( "(A) –10 (B) –4 (C) 8 (D) 20 (E) 24 \n" );
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Algebra.Com's Answer #231336 by Jk22(389)![]() ![]() You can put this solution on YOUR website! (D) d=20\r \n" ); document.write( "\n" ); document.write( "2(x^2-a^2)(x+b)=2x^3+2bx^2-2a^2x-2a^2b\r \n" ); document.write( "\n" ); document.write( "b=-5/2, a=2, d=-2a^2b=20 \n" ); document.write( " |