Question

(x+3)(x+4)(x+5)
Como resolver?

Answer 1

(x+3)×(x+4)x(x+5)

(x²+4x+3x+12)×(x+5)

(²+7x+12)×(x+5)

x³+5x²+7x²+35x+12x+60

x³+12x²+47x+60

Answer 2

 (x+3)(x+4)(x+5)

(x² + 4x+3x +12)(x+5) ==> (x² + 7x +12)(x+5) 

x³ + 5x² +12x + 5x² + 35x + 60

x³ + 10x² + 47x + 60