Question

factorise the following expressn:
3r²-12r+ 9​

Answer 1

Step-by-step explanation:

$3 {r}^{2} - 12r + 9$

$= 3 {r}^{2} - 3r - 9r + 9$

$= 3r(r - 1) - 9(r - 1)$

$= (3r - 9)(r - 1)$

HOPE it will HELP you✌️

PLEASE mark the answer as BRAINLIEST. ✍️