Question

factorize(5x-7y)^3+(9z-5x)^3+(7y-9z)^3

Answer 1

Hello friends!!

Here is your answer :

Let a = 5x - 7y

Let b = 9z - 5x

Let c = 7y - 9z

Now,

a + b + c

= 5x - 7y + 9z - 5x + 7y - 9z

= 0

[ If a + b + c = 0, then a³ + b³ + c³ = 3abc . ]

$= > 3(5x - 7y)(9z - 5x)(7y - 9z)$


Hope it helps you... ☺️☺️☺️☺️

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