Question

(n+8)² = cuánto es ?​

Answer 1

Para resolver usamos ( a + b)² = a² + 2 ab + b²

${n}^{2} + 2n \times 8 + {8}^{2}$

calculamos

${n}^{2} + 16n + {8}^{2}$

evaluamos la potencia

${n}^{2} + 16n + 64$