Question

Factorise: 4² + ²+z²− 4 − 2 + 4 .

Answer 1

Step-by-step explanation:

Let's simplify step-by-step.

42+12+z2−4−2+4

=16+1+z2+−4+−2+4

Combine Like Terms:

=16+1+z2+−4+−2+4

=(z2)+(16+1+−4+−2+4)

=z2+15