I need help answering these questions.

1. Write the equation with integral coefficient whose roots are 1tiv7 1-iv7 , 2+i and 2-i. 2. Write the cubic equation whose roots are 2 and 4+i 3. Find a cubic equation whose roots are -5 and 3i and -3i.1.Find the sum and product a) 4x2 - 3x + 6 = 0 b) 3x2 + 9x2 - x - 2 2. Write the equation whose roots are 2 4+i and 4-i 3. Write the equation whose roots 5 - iv3 and