Question

Isto está correto?

(a⁵ + 2bc)² = (a⁵)² = 2 · (a⁵) · 2bc + (2bc)² = a¹⁰ + 4a⁵bc + 4b²c²

Answer 1

(a + b)² = a² + 2.a.b + b²

(a^5 + 2bc)² = (a^5)^2 + 2.(a^5).(2bc) + (2bc)^2
                    =  a^10 + 4.a^5.bc + 4b²c²