Question

please solve this question in Notebook...
factorise:-
27y³+125z³​

Answer 1

Answer:

$(3y + 5z)(9y {}^{2} - 15yx + 25x {}^{2} )$

Step-by-step explanation:

We can use

x³+y³=(x+y)(x²-xy+y²)

27y³+125z³

(3y)³+(5z)³

(3y+5z)((3y)²-3yX5z+(5x)²)

(3y+5z)(9y²-15yz+25x²)

Answer 2

Answer:

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 }

hope it helps

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Step-by-step explanation: