Problem of the Week

Updated at Jun 27, 2022 1:37 PM

How would you find the factors of z2−2z−3{z}^{2}-2z-3?

Below is the solution.



z2−2z−3{z}^{2}-2z-3

1
Ask: Which two numbers add up to −2-2 and multiply to −3-3?
−3-3 and 11

2
Rewrite the expression using the above.
(z−3)(z+1)(z-3)(z+1)

Done
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