Question

27y³-729z³ solve it
fast tomorrow is my exam

Answer 1

$\huge\boxed {Hey\:Mate!}$
Here is your answer > >

27y^3-729z^3

(3y)^3-(9z)^3

We know that

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

(3y-9z)[(3y)^2+(9z)^2+(3y)(9z)]

(3y-9z)(9y^2+81z^2+27yz)

Hope it helps!

Thankyou ☆ ☆

Answer 2

Answer:

(3y)³ - ( 9z )³                [a³ - b³ = (a-b)(a² +  b² + ab )]

= ( 3 y - 9 z ) (9y² + 81 z² + 27 y z)