Question

1) (x + 2) + (x + 3) + (x + 4) =
2) 2a (n + 1)= 3) 3+ 2(n-1)=
4) 3n + 3+ na
5) -n-n-n-n-n-10=​

Answer 1

Verified answer

1) (x + 2) + (x + 3) + (x + 4) =

= x + 2 + x + 3 + x + 4

= 3x + 9

2) 2a (n + 1)=

= 2an + 2a

3) 3+ 2(n-1)=

= 3 + 2n - 2

= 1 + 2n

= 2n + 1

4) 3n + 3+ na

= 3(n + 1) + na

o también

= n(3 + a) + 3

5) -n-n-n-n-n-10=​

= - 5n - 10

= -5 (n + 2)

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