Question

Jabarkan perpangkatan dark (2x+y)³ dgan menggunakan sgitiga pascel

Answer 1

(a+b)³ = a³ + 3a²b + 3ab² + b³ , maka

(2x + y)³ = (2x)³ + 3(2x)²y + 3(2x)y² + y³
             = 8x³ + 12x²y + 6xy² + y³

Answer 2

(a+b)^3
 = a^3 + 3a^2b + 3ab^2 + b^2 , jadi

(2x + y)^3 
= (2x)^3 + 3(2x)^2y + 3(2x)y^2 + y^3
= 8x^3 + 12x^3y + 6xy^2 + y^3