Question

Select the correct product

(x2+4) (x2-4)

x4 16
x4+16
x2+8x+16
x2 8x 16

Answer 1

Answer:The answer would be x^4 -16

Explanation: use the FOIL method.

(x^2 +4)(x^2 -4)= x^4 +4x -4x -16. 4x and -4x cancel each other out. You are left with x^4 -16.

F- irst

O- uter

I- nner

L- ast

Step-by-step explanation:Hope this helps

Answer 2

The answer would be x^4 -16
Explanation: use the FOIL method.
(x^2 +4)(x^2 -4)= x^4 +4x -4x -16. 4x and -4x cancel each other out. You are left with x^4 -16.
F- irst
O- uter
I- nner
L- ast