What is two ways to rewrite 21x^2 -42x +14 in equvalent form? i really need help here lol-

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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?

Which of the following shows the length of the third side, in inches, of the triangle below