document.write( "Question 603314: what cubic polynomial has zeros x=1 x=2 x=-2 and a y intercept of 2 \n" ); document.write( "
\n" ); document.write( "Hi,\n" ); document.write( "cubic polynomial has zeros at x=1 x=2 x=-2 \n" ); document.write( "f(x) = a(x-1)(x-2)(x+2)\n" ); document.write( "f(x) = a(x^3-x^2-4x+4)\n" ); document.write( "y intercept of 2\n" ); document.write( "f(0) = 4a = 2\n" ); document.write( " a = .5\n" ); document.write( "f(x) = .5(x-1)(x-2)(x+2)\n" ); document.write( "\n" ); document.write( "