In Exercises 1–3, perform the indicated operations and write the result in standard form. (6 − 7i)(2 + 5i)

In Exercises 21–28, divide and express the result in standard form. 8i / 4−3i

In Exercises 29–36, simplify and write the result in standard form. ___ √−49

In Exercises 29–36, simplify and write the result in standard form. ____ √−108

In Exercises 37–52, perform the indicated operations and write the result in standard form. ___ ___ √−64 − √−25

In Exercises 1–10, plot each complex number and find its absolute value. z = 4i

In Exercises 1–10, plot each complex number and find its absolute value. z = 3 + 2i

Plot the complex number $z=2-4i$ on the graph below.

Plot the complex number $z=-i$ on the graph below.