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एक से अधिक उत्तर प्रकार के प्रश्न

If –5 is a root of the quadratic equation 2x2 + ax – 15 = 0 and the quadratic equation a(x2 + x) + k = 0 has equal roots, then which of the following is/are correct?

यदि द्विघात समीकरण 2x2 + ax – 15 = 0 का एक मूल –5 है तथा द्विघात समीकरण a(x2 + x) + k = 0 के मूल समान हैं, तब निम्न में से कौनसा/कौनसे विकल्प सही है/हैं?

A
a = 4
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B
k=74
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C
a = 7
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D
k=95
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Solution

The correct option is C a = 7
Solution

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