Question

factorise 4y² - 12y+9​

Answer 1

Answer:

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it's easy one

Answer 2

Answer :

$\large \sf \implies (2y-3)^2$

Solution :

question :

Factorise :- 4y² - 12y+9

let's solve,

we can write 4y² - 12y+9 as (2y)² -2(2y)(3) + 3²

$\large \boxed{\sf a^2 - 2ab + b = (a-b)^2 }$

Here,

• a = 2y
• b = 3

So,

$\sf (2y)^2 -2(2y)(3) + 3^2 \\ \\ \sf \implies (2y-3)^2$

Hence,

By facorising 4y² - 12y+9, we got (2y - 3)²

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