Question

2x^3+54y^3-4x-12y factorise​

Answer 1

Solution :

Answer:

(x + 3y) [2(x^2 - 3xy + 9y^2) - 4]

Step-by-step explanation:

2x^3 + 54y^3 - 4x - 12y

=> 2(x^3 + 27y^3) - 4(x + 3y)

By using the formula of a^3 + b^3.

°.° a^3 + b^3 = (a + b) (a^2 - ab + b^2)

=> 2(x + 3y) (x^2 - 3xy + 9y^2) - 4(x + 3y)

=> (x + 3y) [2(x^2 - 3xy + 9y^2) - 4]

=> 2(x + 3y) (x^2 - 3xy + 9y^2 - 4)

=> 2(x + 3y) (x^2 - 3xy + 9y^2 - 4) ANS

Answer 2

Answer: ft

Step-by-step explanation:

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