Pema is trying to figure out why (-5)×(-2)=+10. He knowa these three things:
•5+(-5)=0
•5+(-5)×(-2)=[5×(-2)]+[(-5)×(-2)]
•5 ×(-2)=(-10)
How can pema use what he knows I to figure out that (-5)×(-2)=+10?

Help me guys need the ans before 7:00am tomorrow.
Tq❤️​

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