Question

factorise 8x cube + 27 y cube​

Answer 1

Step-by-step explanation:

Hey There,

Here we are going to use the identity : a³ + b³ = (a + b)(a² − ab + b²)

We can solve this question in the same way as follows:

8x³+27y³

= (2x)³ + (3y)³

- (2x + 3y)((2x)² − (2x)(3y) + (3y)²)

(2x + 3y) (4x² - 6xy +9y²)

Hope it helps