THE MAIDEN problem (improved)

consider the function y= sin(x) /{ x + x^{2} } .

LET $y^{(n)}$ denote the n'th derivative of y. Then find the value of 90 * $y^{(9)}$ - 6480 * $y^{(7)}$ when the value of x limits to zero {i.e as x tends to zero}

This problem is inspired by this one. .

asterix(*) denotes multiplication.