Question

2. Simplify using following identity :
(a + b) (a² + ab + b²) = a³ + b³
(i) (2x + 3y) (4x² - 6xy + 9y²)​

Answer 1

Answer:

8x³ + 27y³

Step-by-step explanation:

right formula

a³+b³ = (a+b)(a²-ab+b²)

a = 2x and b = 3y

a³+b³ = (2x)³ + (3y)³

=> 8x³ + 27y³

Answer 2

(2x + 3y) (4x² - 6xy + 9y²)= 8x³ + 27y³ Explanation = >

(a + b) (a² + ab + b²) = a³ + b³

a=2x and b=3y

a³ + b³= (2x)³ + (3y)³= 8x³ + 27y³