Question

How do you factor `y= x^2 - 5x + 4` ?

Answer 1

see below

Explanation:

We have, `y=x^2-5x+4`
Carrying out middle term factorization,we get,
`y`=`x^2-4x-x+4`
Or, `y`=`x(x-4)-1(x-4)`
Thus , `y=(x-1)(x-4)`