Factor each polynomial by using the GCF only. 24 x^{2}+8 x 3 x^{2}+12 x+9 x^{4} y-16 x^{2} y -5 x^{5}+30 x^{4}+35 x^{3} x^{6} y-25 x^{2} y^{3} 10 x^{3} y^{3}-10 x^{2}

y^{3}-20 x y^{3} \text { 9. } x^{2}(x+7)-9(x+7) 2 x(x-5)-(x-5) 4 x(x-5)+3(5-x)