What is the complete factorization of the polynomial below?
2 - 2x²+x-2

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

State one method by which you can recognize a perfect square trinomial.

Ineed the question and choices are in the