Question

Factorise: 4x^2-5x-1 /4 by middle term method.

Answer 1

Answer:

${4x}^{2} - 5x - \frac{1}{4} \\ = {4x}^{2} - 4x + ( - 1x) - \frac{1}{4} \\ = {4x}^{2} - 4x - 1 x- \frac{1}{4} \\ = 4x(x - 1) - 1(x - 1) \\ = (x - 1)(4x - 1)$

so mate above is your answer.

hope It helps...