Question

What is the common factors of (3x² – 9x) and (x² – 9)?

Answer 1

Answer:

$factorise : \\ (i) \: ( 3{x}^{2} - 9x) \\ = 3x(x - 3) \\ (ii) \: \: (x {}^{2} - 9) \\ = ( {x}^{2} - {3}^{2} ) = (x - 3)(x + 3) \\ {.}^{.} .\: (x - 3) \: is \: common \: in \: both$