Question

Resolva a equação:
∑2/k=0 (x^k) = 13

Answer 1

Expanding the sum,

Σ^2_(k= 0)(x^k) = x⁰ + x¹ + x² = x² + x + 1 = 13

Solving the equation,

x² + x + 1 = 13

x = 3, - 4

Enjoy your studies ma dear.