Question
Download Solution PDF49a2 + 70ab + 25b2 కారణాంకాలను కనుగొనండి.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFఇచ్చినది: 49a2 + 70ab + 25b2.
ఉపయోగించిన సూత్రం:
- (a + b)2 = a2 + 2ab + b2
గణనలు:
మనకు తెలుసు 49 = 72, 70 = 2 x 5 x 7, మరియు 25 = 52
ఇప్పుడు సమీకరణం ఇలా మారుతుంది,
72a2 + (2 x 5 x 7) ab + 52b2
= (7a)2+ 2(7a) (5b) + (5b)2
సమీకరణం (a+ b)2 లక్షణాన్ని సూచిస్తుంది
కాబట్టి, (7a)2+ 2(7a) (5b) + (5b)2
= (7a+5b)2
అందువల్ల, సరైన సమాధానం ఎంపిక 2.
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