Vanova
Answered

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n(n+1)+2n+1
expand and simplicity

Sagot :

rebeccarayshma

Answer:

n² + 3n +1

Step-by-step explanation:

n(n+1) + 2n + 1

i) distribute n into the parantheses

= (n×n) + (n×1) + 2n + 1

= n² + n + 2n + 1

ii) collect like terms

= n² + 3n +1

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