Question

How do you multiply ( z + 1 ) by ( z - 7 ) ? I demand a step-by-step Answer...​

Answer 1

Answer:

z^2-6z-7

Step-by-step explanation:

=(z+1)(z-7)

=z(z-7)+1(z-7)

=z^2-7z+z-7

=z^2-6z-7

Answer 2

Step-by-step explanation:

(z+1)x(z-7)

Look this is how you do it.

Whenever there is this type of question you have to multiply the whole term by another whole term.

=z×z + z×-7 + 1×z + 1×-7

=z² - 7z + z -7

Hope you understood.