Ecuatia de gradul II PDF
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Liceul Teoretic „Mihail Sadoveanu”
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This PDF document contains quadratic equations and their solutions. The document includes examples and exercises for students to solve. It is likely a worksheet or a part of a secondary school mathematics curriculum.
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Ecuatia de gradul II Forma generala a ecuatiei de gradul al doilea este : a x 2 +b x +c = 0 ; b Calculam delta, b2 4 a c ; Solutiile ecuatiei sunt date de formula: x1,2 ...
Ecuatia de gradul II Forma generala a ecuatiei de gradul al doilea este : a x 2 +b x +c = 0 ; b Calculam delta, b2 4 a c ; Solutiile ecuatiei sunt date de formula: x1,2 2a Daca >0, ecuatia are 2 solutii reale diferite. Daca =0, ecuatia are 2 solutii reale egale. Daca 0 , deci 9-16m>0, de unde 9>16m, m<. 16 Tema Rezolvati ecuatiile : 1) x 2 5x 6 0. 2) x 2 2 x 3 0 3) x 2 9 0 4) x 2 4 0 5) x 2 6 x 9 0 6) 2 x 2 5x 2 0 7) Determinati m R , astfel incat ecuatia x 2 mx 4 0 sa aiba 2 solutii reale egale. 8) Aratati ca ecuatia x 2 2 x 1 m2 0 nu are solutii reale, pentru orice valori ale lui m., nenule
