Question

Factorise the following 9q²-30q+25​

Answer 1

Step-by-step explanation:

$9q {}^{2} - 15q - 15q + 25 \\ 3q(3q - 5) - 5(3q - 5) \\( 3q - 5)(3q - 5) \\ (3q - 5) {}^{2}$

Answer 2

Answer:

9q²-30q+25

splitting middle term