Question

Помогите⤵️
1) a^n+¹ +a^n +a+1
2) b^n+² -b-1+b^n+¹
3) 3y^n+³ -3y² -5+5y^n +1

Answer 1

Відповідь:

1) a^n+¹ +a^n +a+1= aⁿ(a+1)+a+1= (aⁿ+1)(a+1)

2) b^n+² -b-1+b^n+¹= bⁿ(b+1)−(b+1) = (bⁿ−1)(b+1)

3) 3y^n+³ -3y² -5+5y^n +1 = 3yⁿ⁺³+5yⁿ⁺¹-3y²-5+1 = 3yⁿ⁺³+5yⁿ⁺¹-3y²-4