How do you multiply ( z + 1 ) by ( z - 7 ) ? I demand a step-by-step Answer...
Answers
Answered by
7
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
Answered by
4
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.
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