Question

Factorise : 8xy(z^2+6z-16) / 4y(z+8)

Answer 1

8xy(z²+6z-16)

4y(z+8)

= 8xy(z²+8z-2z-16)

4y(z+8)

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

z+8

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

z+8

= 2x(z-2)

I hope this answer helps you.