Question

a2+ 3ab + b² from a2 - 20h .+ 3b²​

Answer 1

Answer:

a2+ 3ab + b² -( a2 - 20h .+ 3b²)

= a2+ 3ab + b² -a²+20h-3b²

= 3ab +20h-2b²

i think this is the answer

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