Question

If (x+2) and (x-2) are the factor of ax^4+2x^3-3x^2+bx-4 then find the value of a+b.
If you can explain then please explain. ​

Answer 1

Answer:

a=1, b=-8 detail solution to see my attachment

Answer 2

Answer:

$\huge\purple{♡}\pink{Nice..question}\purple{♡}$