+556 Suppose $a(x) = 2x + 5 - 3x^2 + x^3$ and $b(x) = 4 - x^2 + 4x^4$. Find $(a\circ b)(3) - (b\circ a)(3).$
+129830 (a ° b) (3) = a ( b(3) )
b(3) = 4 -(3)^2 + 4(3)^4 = -5 + 324 = 319
a (319) = 2(319) + 5 - 3(319)^2 + (319)^3 = 32,157,119
(b ° a)(3) = b (a (3))
a(3) = 2(3) + 5 - 3(3)^2 + 3^3 = 11
b (11) = 4 - (11)^2 + 4 (11)^4 = 58447
(a ° b)(3) - (b ° a)(3) =
32,157,119 - 58447 =
32,098,672
