Question

split the middle term of x-2y+1

Answer 1

Answer:

let x-2y=t

9t^2-4t-13

9t^ + 9t - 13t - 13

9t(t + 1) - 13(t + 1)

(9t - 13)(t + 1)

now put the value of t

(9x - 18y - 13)(x - 2y + 1)