(2(x+3)2-5) को सरल द्विघात रूप में लिखिए।
Write (2(x+3)2-5) in simplified quadratic form.
Explanation opens after your attempt
B. \(2x^2+12x+13\)
Concept
Since ((x+3)2=x-2+6x+9), multiply by (2) and subtract (5). Exam tip: apply the outside multiplier to the whole bracket.
Why this answer is correct
The correct answer is B. \(2x^2+12x+13\). Since ((x+3)2=x-2+6x+9), multiply by (2) and subtract (5). Exam tip: apply the outside multiplier to the whole bracket.
Exam Tip
((x+3)2=x-2+6x+9) है और (2) से गुणा करके (5) घटाएं। परीक्षा में बाहरी गुणन पूरे कोष्ठक पर लगाएं।
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