4z2 – 8z + 3=?
4z2 – 8z + 3
Factorizing the equation and taking 2z and – 1 as common,
= 4z2 – 6z – 2z + 3
= 2z(2z – 3) – 1(2z – 3)
= (2z – 1)(2z – 3).