Q. Expand : S + 23
A) S3+3S2+6S+8
B) S3+3S2+12S+8
C) S3+6S2+6S+8
D) S3+6S2+12S+8
✔ Correct Answer: S3+6S2+12S+8
Exam Insight
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A) S3+3S2+6S+8
B) S3+3S2+12S+8
C) S3+6S2+6S+8
D) S3+6S2+12S+8
✔ Correct Answer: S3+6S2+12S+8
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