Step-by-step EXPLANATION:

Step-by-step explanation:We observe

Step-by-step explanation:We observe5a

Step-by-step explanation:We observe5a 2

Step-by-step explanation:We observe5a 2 B

Step-by-step explanation:We observe5a 2 b 2

Step-by-step explanation:We observe5a 2 b 2 =5×a

Step-by-step explanation:We observe5a 2 b 2 =5×a 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2 2 .

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2 2 .THEREFORE HCF=5×a×b

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2 2 .Therefore HCF=5×a×b 2

Step-by-step explanation:We observe5a 2 b 2 =5×a 2 ×b 2 , 10ab 2 =5×a×b 2 ×2, 20ab 3 =5×a×b 3 ×2 2 .Therefore HCF=5×a×b 2 .