Question
Download Solution PDFसमीकरण x2 + 7x + 12 = 0 के दो मूल ज्ञात कीजिए।
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFदिया गया है:
समीकरण: x2 + 7x + 12 = 0
प्रयुक्त सूत्र:
द्विघात सूत्र:
गणनाएँ:
समीकरण x2 + 7x + 12 = 0 के लिए:
a = 1, b = 7, c = 12
विविक्तकर:
⇒ (7)2 - 4 × 1 × 12
⇒ 49 - 48
⇒ 1
द्विघात सूत्र का उपयोग करने पर:
⇒
⇒
मूल:
x = = -3
x = = -4
∴ सही उत्तर विकल्प (2) है।
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