Question

Click pe poza dau coroana((pe o foaie sa faceti s ainteleg rapid dau 61 de puncte)))) ♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️♨️​

Answer 1

a=25

b=42

⇒a*b=25*42=1050

⇒2*a*b=2*1050=2100

⇒a*b-120=1050-120=930

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a=63

b=81

⇒a*b=63*81=5103

⇒2*a*b=2*5103=10206

⇒a*b-123=5103-123=4980

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a=29

b=37

⇒a*b=1073

⇒2*a*b=2*1073=2146

⇒a*b-123=1073-123=950

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a=74

b=21

⇒a*b=74*21=1554

⇒2*a*b=2*1554=3108

⇒a*b-123=1554-123=1431