f(x) = x2 - 7x + 12 এবং f(x) = 0 হলে, x এর মান কত?

A

3, 9


B

- 3, 4

C

2, 6

D

3, 4

উত্তরের বিবরণ

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সমাধান:

​দেওয়া আছে,

​f(x) = x2 - 7x + 12

​এখন,

​f(x) = 0

​x2 - 7x + 12 = 0

​= x2 - 3x - 4x + 12 = 0

​= x(x - 3) - (x - 3) = 0

​= (x - 3)(x - 4) = 0

∴ ​x = 3, 4

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Updated: 1 month ago

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