Question

Factorise:3z^2-10z+8​

Answer 1

Answer:

$\: \: \: \: \: 3 {z}^{2} - 10z + 8$

$= 3 {z}^{2} + ( - 6 - 4)z + 8 \\ = 3 {z}^{2} - 6z - 4z + 8 \\ = 3z(z - 2) - 4(z - 2) \\ = (z - 2)(3z - 4)$