Question

Fast.................... ​

Answer 1

Answer:

As in

x^2 – 4x + 5

D0 hence always positive

we can directly cross multiply

x^2 – 5x + 12 > 3x^2 – 12x + 15

2x^2 – 7x + 3

2x^2 – 6x – x + 3

(x – 3) (2x – 1)

x belons to (1/2 , 3)

Hope it helps