Question

9{a+b}² -12{a²-b²} +4{a²-b²} factorize it

Answer 1

Answer:

9[a+b]²-12[a²-b²]+4[a²-b²]

[a+b]²=a²+2ab+b²,a²-b²=[a+b][a-b]

9[a²+2ab+b²]-12[a²-b²]+4[a²-b²]

9a²+18ab+9b²[-12a²+12b²+4a-4b²]

9a²+18ab+9b²[-8a²+8b²]

9a²-8a²+18ab+9b²+8b²

a²+27ab+17b²