Question

(2x+3y)cubic.............................​

Answer 1

Answer:

Step-by-step explanation:

→ (2x + 3y)³

→ (a + b)³ =  a³ + b³ +3ab(a+b)

→ (2x)³ + (3y)³ + 3(2x)(3y) [2x+3y]

→ 8x³ + 27y³ + 18xy[2x+3y]

→ 8x³ + 27y³ + [18xy × 2x + 18xy × 3y]

→ 8x³ + 27y³ + 36x²y + 54xy²

→ 8x³ + 36x²y + 27y³ + 54xy²