(x
2
– 1)
2
is gelijk aan
A. (x
2
− 1)(x
2
+ 1)
B. x
4
+ 2x
2
+ 1
C. (x − 1)
2
.(x + 1)
2
D. x
4
+ 1
E. x
4
− 1
[ 3-5600 - op net sinds 4.9.2025-(E)- ]
Translation in E N G L I S H
IN CONSTRUCTION
Oplossing - Solution
(x
2
– 1)
2
= [(x − 1)(x + 1)]
2
= (x − 1)
2
.(x + 1)
2
