Desarrolla los productos. a z+3z+8= b u-4u+7= c x-10x-2= d 3x+23x+6= e 4a-34a+10= f x2+4x2-6= g 3x3-23x4-1= h 4a+5b4a-3b=

a z^{2} + 11 z + 24b u^{2} + 3 u - 28c x^{2} - 12 x + 20d 9 x^{2} + 24 x + 12e 16 a^{2} + 28 a - 30f x^{4} - 2 x^{2} - 24g 9 x^{7} - 6 x^{4} - 3 x^{3} + 2h 16 a^{2} + 8 a b - 15 b^{2}