document.write( "Question 716422: Find all Zero's X^3+7X^2+7X-15=F(x) \n" ); document.write( "
Algebra.Com's Answer #439862 by stanbon(75887) ![]() You can put this solution on YOUR website! Find all Zero's X^3+7X^2+7X-15=F(x) \n" ); document.write( "------- \n" ); document.write( "Since the coefficients add up to 0 x=1 is a root. \n" ); document.write( "Use synthetic division to find the remaining 2 roots: \n" ); document.write( "------------- \n" ); document.write( "1)....1....7....7....-15 \n" ); document.write( "......1....8....15..|..0 \n" ); document.write( "-----\r \n" ); document.write( "\n" ); document.write( "Solve the quotient for roots: \n" ); document.write( "x^2 + 8x + 15 = 0 \n" ); document.write( "(x+3)(x+5) = 0 \n" ); document.write( "---- \n" ); document.write( "Roots: x = -3 ; x = -5 ; x = 1 \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================================ \n" ); document.write( " |