Question Number 86016 by mathmax by abdo last updated on 26/Mar/20
$${calculate}\:\int_{\mathrm{0}} ^{\infty} \:\:\:\frac{{x}^{\mathrm{2}} −\mathrm{3}}{\left({x}^{\mathrm{2}} +\mathrm{1}\right)^{\mathrm{7}} }{dx} \\ $$
calculate-0-x-2-3-x-2-1-7-dx-