Question

26. Factorise
9x2 – 84xy + 36y?​

Answer 1

Step-by-step explanation:

9x²-84xy+36y²

(3x-6y)²

Answer 2

Step-by-step explanation:

$a {}^{2} + 2ab + b {}^{2} ={ a + b} {}^{2}$

3x^2-3x×6y+6y^2

(3x-6y)^2