जॉइन Examsbookउत्तर : 1. "5"
Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is ?5
प्र: Thrice the square of a natural number decreased by 4 times the number is equal to 50 more than the number. The number is ?
- 15true
- 24false
- 37false
- 46false
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उत्तर : 1. "5"
व्याख्या :
Answer: A) 5 Explanation: Let the number be x. Then, 3x2 - 4x = x + 50 3x2- 5x - 50 = 0 (3x + 10)(x - 5) = 0 x = 5