Scooby

so the problem for all says "find all possible values of the given variable"

the first equation is: (n+10)(3n+6)=0

how do i solve that? i looked online and the answer was:

n=-2

n=-10

but how did they find that?

also number 3 (just so i can understand the rest), (6b+7)(5b+11)=0

could you guys help me out? thanks

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