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d) □ x □ -5 × □ = 5 × (□-□)​

Răspuns :

5×5-5×2=5x(9-6)

VERIFICARE:

25-10=5x3

15=15 - adevărat

SAU

5×5-5x5=5x(5-5)

VERIFICARE:

25-25=5x0

0=0