Question

3x square -x -4 find zero​

Answer 1

$3x{2} - x - 4 \\ 3x{2} - 4x + 3x - 4 \\ x(3x - 4) + 1(3x - 4) \\ \\ (3x - 4)(x + 1) \\ answer$

Answer 2

here is ur answer,

see the attachment.