Question

~Question on Comments :)
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Expanding Expressions

Answer 1

a*(b+c)= ab+ac, this is the distributive law of multiplication

Answer 2

here is an example

-5(2+1) = -5*(2) + -5*(1) = -15

here is another example

-5(2x+1) = -5*(2x) + -5*(1)= -10x - 5

Answer 3

Thanks :)