Question

if z2-4z-12= (z-6) (2+k) then k=?​

Answer 1

Answer:

z² - 4z - 12

= z² - 6z + 2z - 12

= z(z - 6) + 2(z - 6)

= (z - 6) (z + 2)

The factors are (z - 6) and (z + 2)

:

Answer 2

Answer:

z

Step-by-step explanation:

z2-4z-12 = z2-6z+2z-12

=z(z-6)+2(z-6)

=(z-6)(2+z)

hence k=z