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a= √98-√92-√8
b=√162+√18+√72
mg=√a*b=?


Răspuns :

a=7√2-2√23-2√2=5√2-2√23
b=9√2+3√2+6√2=18√2

mg=√(5√2-2√23)×18√2
mg=√(180-36√46)