Math, asked by mridulgosh, 8 months ago

Factorise 9(a+b)2 -12(a2-62) +4(a+b)2.

Answers

Answered by rameshtayal010

0

Step-by-step explanation:

9a²+9b²-12a²-744+4a²+4b²

9a²+9b²-12a²-744+4a²+4b²

13a²+13b²-12a²-744

a²+13b²-744

a²+31b²-24b²-744

1(a²+31b²)-24(b²+31)

(1-24). (a²+21b²) (b²+31)

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