document.write( "Question 180840: (a) What must be the two relationships beween a and b if x(x+a)(x+b)=x^3-4x^2-12x?
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document.write( "(b) Use your answer to part (a) to calculate the values of a and b. \n" );
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Algebra.Com's Answer #135584 by radhika.anumanchi(1) ![]() You can put this solution on YOUR website! x(x+a)x+b) = x^3 - 4x^2 - 12x \n" ); document.write( "x^3 + x^2 (a+b) + abx = x^3 - 4x^2 - 12x\r \n" ); document.write( "\n" ); document.write( "Compare each term on both LHS & RHS\r \n" ); document.write( "\n" ); document.write( "(a+b) = -4 & ab = -12\r \n" ); document.write( "\n" ); document.write( "substitute a= 2, b= -6; which satisfy the expression.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |