Question

Hegarty maths- Algebra Quadratic sequences & graphs 249 - Use the nth term of a quadratic sequence 1

Please help me TvT

Answer 1

Explanation:

T₁ = 1² + 4·1 + 2 = 7

T₂ = 2² + 4·2 + 2 = 14

T₃ = 3² + 4·3 + 2 = 23