Question

factorise : 3х² – 13х + 12​

Answer 1

$3 {x}^{2} - 13x + 12$

$3 {x}^{2} - (9 + 4)x + 12$

$3 {x}^{2} - 9x - 4x + 12$

$3x(x - 3) - 4(x - 3)$

$(x - 3)(3x - 4)$

mark brainly answer

Answer 2

$3x {}^{2} - 13x + 12 \\ = > \: 3x {}^{2} - 9x - 4x + 12 \\ = > \: 3x(x - 3) - 4(x - 3) \\ = > \: (x - 3)(3x - 4)$