Question

x2-3bx-ax+3b factorise it please help​

Answer 1

Answer:

$x {}^{2} - 3bx - ax + 3ab \\ = x(x - 3b) - a(x - 3b) \\ = (x - a)( x - 3b) {x}^{2} - 3bx - ax + 3bx - ax + 3ab$

$= (x - a)(x - 3b)$