De oplossingenverzameling
van   x2 + 3x < 10   (in r ) is 		A.   ] − 2, 5 [
B.   { − 2, 5 }
C.   ] − 5, 2 [
D.   { − 5 }
E.   { 2, − 5 }
A    B    C    D   E

[ 4-4625 - op net sinds 21.7.12-(E)-4.11.2023 ]

Translation in   E N G L I S H

The solution set of
van   x2 + 3x < 10   is 		A.  ( − 2, 5 )
B.  { − 2, 5 }
C.  ( − 5, 2 )
D.  { − 5 }
E.  { 2, − 5 }

Oplossing - Solution

  x² + 3x < 10
⇔ x² + 3x − 10 < 0  V(2)=2² + 3.2 − 10 = 0   dus x − 2 is deler
⇔ (x − 2)(x + 5) < 0
    x  >|   −5   2   .
1ste lid >|  +   0   −   0   +
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