Question

factorise the following by using identity- 27x^3-135x^2+225x-125​

Answer 1

Answer:

(3x)^3 - (5)^3 -45x(3x-5)

(3x - 5) (9x^2 + 15x + 25) - 45x (3x- 5)

(3x - 5 ) ( 9x^2 - 30x +25)

(3x-5) (9x^2 - 15x - 15x +25)

(3x - 5) (3x(3x-5) -5 (3x - 5))

(3x - 5) (3x - 5)(3x-5)

(3x - 5)^3

Step-by-step explanation:

First use formula of a^3 - b^3

Take LCM

solved already