Question

factorise:27y³+125z³​

Answer 1

Answer:

ooo

(i) 27y³ + 125z³

We know that,

x³ + y³ = (x+y) ( x² - xy + y² )

So, here

x = 3y , y = 5z

= 27y³ + 125z³ = (3y + 5z) { (3y)² - 3y*5x + (5z)² }

= 27y³ + 125z³ = (3y + 5z) { 9y² - 15xy + 25z² }

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Answer 2

Answer:

here is your answer

Step-by-step explanation:

(9y)³+(5z)³

(3y+ 5z)(3y+5z-15yz)