alleryx^2 - 9x + 20 = 0 എന്നതിന്റെ മൂലങ്ങളുടെ ആകെത്തുക
A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
സമവാക്യം (x - 4)(x - 5) ആയി ഘടകമാക്കുന്നു, അതിനാൽ വേരുകൾ 4 ഉം 5 ഉം ആണ്, സംഗ്രഹിച്ചാൽ 9.
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