De oplossingenverzameling
van   x2 + 5x = 0   is 		A.   { 1, 5 }
B.   { 1, − 5 }
C.   { 0, 5 }
D.   { 0, − 5 }
E.   { − 5 }
A    B    C    D    E

[ 3,4-2026 - op net sinds 25.9.10-(E)-29.10.2023 ]

Translation in   E N G L I S H

The solution set of
  x2 + 5x = 0   is 		A.   { 1, 5 }
B.   { 1, − 5}
C.   { 0, 5 }
D.   { 0, − 5 }
E.   { − 5 }

Oplossing - Solution

x² + 5x = 0  ⇔  x(x + 5) = 0  ⇔  x = 0 ∨ x + 5 = 0  ⇔  x = 0 ∨ x = − 5
gricha