Respuesta :

apologiabiology
easy peasy

a(b+c)=ab+ac
4(9c+1)=4*9c+4*1=36c+4
measd
This is an example of the distributive property, so 4 multiplies the 9c and the +1, which gets us:

[tex](9c+1)(4) = 36c+4[/tex]

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