Question

factorise the following you have to factories please ​

Answer 1

$let \: (4x - \frac{1}{4x}) = a$

$12 {a}^{2} + 5a - 2$

$12 {a}^{2} + (8a - 3a) - 2$

$12 {a}^{2} + 8a - 3a - 2$

$4a(3a + 2) - 1(3a + 2)$

$(3a + 2)(4a - 1)$

$put \: a \: = (4x - \frac{1}{4x} )$

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

$(12x - \frac{3}{4x} + 2)(16x - \frac{4}{4x} - 1)$