Question

Como resolve a conta (5+3x)² ?

Answer 1

Ola Paloma

(5 + 3x)² = 25 + 30x + 9x²

.

Answer 2

(5+3x).(5+3x)
25 +15x +15x +9x²
25 + 30x +9x²
organizando
9x² +30x +25