Question

factorise the following z square - 6 Z - 16​

Answer 1

Answer:

Z²-6z-16

=z²-8z+2z-16

=(z-8)(z+2)........

Answer 2

z^2-6z-16

z^2-8z+2z-16

z(z-8)+2(z-8)

(z+2)*(z-8)