If f(x) = ax^4 + x^3 + 2ax + 5, then f(b) – f(-b) will equal:	Choose the correct answer
A) 0 B) 2ab C) 2ab^4 – 8b^2 – 6 D) -2ab^4 + 8b^2 + 6 E) 2b^3 + 4ab
f(x)=ax^4 + x^3 + 2ax + 5   f(b) = ab^4 + b^3 + 2ab + 5   f(-b) = ab^4 - b^3 - 2ab + 5   f(b) - f(-b) = ab^4 + b^3 + 2ab + 5 - ab^4 + b^3 + 2ab - 5   =2b^3 + 4ab   Answer 2b^3 + 4ab
<result>E</result>
If f(x) = ax^4 + x^3 + 2ax + 5, then f(b) – f(-b) will equal: