Question

Factorise 4y² - 12y + 9.​

Answer 1

Solution:-

Observe,

$\sf{4y^2 = (2y)^2, 9 = 3^2}$ and $\sf{12y = 2 × 3 × (2y)}$

Therefore,

$\sf{4y^2 - 12y + 9}$

$\sf{= (2y)^2 - 2 × 3 × (2y) + (3)^2}$

$\sf{= (2y - 3)^2}$

⠀⠀⠀⠀⠀⠀⠀$\boxed{\sf{\green{(Required\: factorisation)}}}$

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Answer 2

Answer:

8y+9

Step-by-step explanation:

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