Explicación paso a paso:
3)
a)
a(2a+b)= 2a²+ab
b)
3s(s+5) = 3s²+15s
c)
(x+2)(x+3)= x²+5x+6
D)
c²+4c= c(c+4)
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Explicación paso a paso:
3)
a)
a(2a+b)= 2a²+ab
b)
3s(s+5) = 3s²+15s
c)
(x+2)(x+3)= x²+5x+6
D)
c²+4c= c(c+4)