De oplossingen-
verzameling van
− x = x
2
A. { 1 }
B. { 0 }
C. { 0, 1 }
D. { 0, − 1 }
E. leeg
[ 3-0811 - op net sinds 21.7.2020-(E)-22.10.2023 ]
Translation in E N G L I S H
The
solution
set of
− x = x
2
is
A. { 1 }
B. { 0 }
C. { 0, 1 }
D. { 0, − 1 }
E. empty
Oplossing - Solution
− x = x
2
0 = x
2
+ x
0 = x (x + 1)
x = 0 ∨ x + 1 = 0
x = 0 ∨ x = − 1
