alleryx^2 - 9x + 20 = 0 च्या मुळांची बेरीज ______ आहे.
A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
समीकरणाचे अवयव (x - 4)(x - 5) असे पडतात, म्हणून मुळे 4 आणि 5 आहेत, ज्यांची बेरीज 9 होते.
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