Question

z^2+6z-16: factorise this ​

Answer 1

Answer:

(z-2)(z+8)

Step-by-step explanation:

z^2+8z-2z-16

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

(z-2)(z+8)

Answer 2

Step-by-step explanation:

z^2+6z-16

= z^2+8z-2z-16

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

= (z+8)(z-2)