alleryx^2 - 9x + 20 = 0 ನ ಬೇರುಗಳ ಮೊತ್ತವು
A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
ಸಮೀಕರಣವು (x - 4)(x - 5) ನಂತೆ ಅಪವರ್ತಿಸುತ್ತದೆ, ಆದ್ದರಿಂದ ಬೇರುಗಳು 4 ಮತ್ತು 5 ಆಗಿರುತ್ತವೆ, ಇವುಗಳನ್ನು 9 ಗೆ ಕೂಡಿಸಲಾಗುತ್ತದೆ.
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