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Akar-akar persamaan kuadratadalah dan . Persamaan ...

Akar-akar persamaan kuadratspace 2 straight x squared space minus 3 straight x space plus space 12 space equals space 0 spaceadalah alpha dan beta. Persamaan kuadrat baru yang akar-akarnya left parenthesis alpha minus 2 right parenthesis dan left parenthesis beta minus 2 right parenthesis adalah...

  1. 2 x squared space minus space 14 x space plus 5 equals space 0

  2. 2 x squared space plus space 5 x space plus 14 equals space 0

  3. 2 x squared space plus space 5 x space minus 14 equals space 0

  4. 2 x squared space minus space 5 x space plus 14 equals space 0

  5. 2 x squared space minus space 5 x space minus 14 equals space 0

Jawaban:

2 left parenthesis straight x space plus space 2 right parenthesis squared space minus space 3 left parenthesis straight x space plus space 2 right parenthesis space plus space 12 space equals space 0  2 left parenthesis space straight x squared space plus 4 straight x space plus 4 space right parenthesis minus space 3 straight x minus plus 12 space equals space 0  2 straight x squared space plus space 8 straight x space plus space 8 space minus space 3 straight x space plus space 6 space equals space 0  2 straight x squared space plus 5 straight x plus 14 equals 0

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