The Total solution for NCERT class 6-12
2a2┬а+26тАУтИЪ┬аab +3 b2= (2тАУтИЪ┬аa)2+┬а2тАУтИЪ┬аax┬а3тАУтИЪ┬аb+(3тАУтИЪ┬аb)2= (2тАУтИЪa+┬а3тАУтИЪ┬аb)2