What is the value of a2 + 4b2 + 9c2 − 4 - Exam Yatra

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What is the value of a²+ 4b²+ 9c²− 4ab + 12bc − 6ca ?

[SSC CHSL 16th March 2023 Shift-4 With Answers]

A

(a+2b−3c)²

B

(2a−b−3c)²

C

(2b−a−3c)²

D

(a−2b−3c)²

EXPLANATION

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